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Messages - Aliyu lawal

Pages: [1]
1
How About Your School? / Re: COEASU :Jonathan orders to end Strike
« on: April 29, 2014, 01:46:52 pm »
BOOK-KEEPING OBJ:1BBBBACCADD11DBACBA CCDD21BDBBADCCDDMor e Loading....(1a)Public warehousing isowned and operated byprivate individuals who let itout to anybody for safekeepingof goods.(1c) bonded warehousing is aplace where goods whosecustom duties have not beenpaid are stored until the dutiesare settled.(1b)Private warehouse: it's agoods storage premise,perfectly delimited andindividualised in thedestination document, whereforeign goods remain undercustoms control withoutpaying duties and taxes causedby their import.(2a)The feasibility study is anevaluation and analysis of thepotential of a proposed projectwhich is based on extensiveinvestigat ion and research tosupport the process ofdecision making.(2bii) A cost benefit analysis ofa state agency?s proposedelectronic payment acceptanceand/or disbursement projectthat should demonstrate theeconomic feasibility.(2bi) Technical feasibility isattainability of a system usingcurrently existing technology.Technica l feasibility takes intoaccount whether the requiredtechnology is available or notand whether the requiredresources are available interms of manpower andequipment(3a.) The buying and selling ofgoods, especially ona large scale, as between citiesor nations(5a)a store-keeper is the headof a service department who isresponsible for a properstorage, protection and issueof all kinds of material(5b) To avoid over and under-stocking of materials.- To maintain systematicrecords of materials.-To protect materials fromlosses and damages.- To minimize the storage costsof materials(5ci) . Issuing purchaserequisition s to PurchaseDepartment as and whennecessity for materials instores arises.Ii). Receiving purchasedmaterials from the purchasedepartment and to confirmtheir quality and quantity withthe purchase order.iii) Storing and preservingmaterials at proper andconvenient places so that itemscould be easily located.iv). Storing the materials insuch a manner so as tominimise the occurrence ofrisks and to prevent losses dueto defective storage handling.V). Issuing materials to variousdepartments against materialrequisition slips dulyauthorized by the respectivedepartmen tal heads.Vi). Undertaking a propersystem of inventory control,taking up physical inventory ofall stores at periodical intervalsand also to maintain properrecords of inventory(6a) A centralized store is thatstore which receives materialsfor and issues them to alldepartments, divisions andproduction floors of thecompany.(6b) A decentralized store isthat type of store whichreceives materials for andissues them to only onedepartment and not to thewhole company[SHARE]

2
EarlyFace Examination Center (EEC) / Re: mathematics runs
« on: April 24, 2014, 03:03:43 pm »
1-1: BACCAADBCA11-20: DDDABADBAC21-30: BBBBADCCAC31-40: CDBCCDACAA41-50: BCBABCDDCD

3
EarlyFace Examination Center (EEC) / Re: mathematics runs
« on: April 24, 2014, 11:34:32 am »
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4
EarlyFace Examination Center (EEC) / Re: mathematics runs
« on: April 24, 2014, 11:33:26 am »
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5
EarlyFace Examination Center (EEC) / Re: mathematics runs
« on: April 24, 2014, 10:59:58 am »
(12a)Given, 5cos(x+8.5)-1=0C0s(x+8.5)^o=1/5cos(x+8.5)^o=0.2x+8.5^o=Cos^-1(0.2)x+8.5^o=78.46x=78.46-8.5x=69.96^ox=70(degree)(12bii)QR^2=(PR^2)+(PQ^2)-2PR*PCOS(RPQ)P^2=32^2+24^2-2(32)(24)COS45(DEGREE)P^2=1600-1536*0.7071P^2=1600-1086.1P^2=513.88P=sqrt(513.88)p=22.67kmDistance QR=22.67km(12biii)32/sin(tita)=22.67/sin45(deg),sin(tita)=0.9981tita=sin^-1(0.9981)tita=86(degree)(5)Pr(x)=0.5, Pr(X^1)=0.5Pr(Y^1)=0.3 , Pr(Y)=0.7(a)Pr(both contracts)=Pr(x)*Pr(Y)=0.5*0.7=0.35(b)Pr(exactly one of the contracts)=Pr(X)*Pr(Y^1)+Pr(X^1)*Pr(Y)=(0.5*0.3)+(0.5*0.7)=0.15+0.35=0.5(c)Pr(Neither of the contrasts)= pr(X^1)*Pr(Y^1)=0.5*0.3=0.15(4a)Area(A)= (tita/360*pieR^2) -(1/2R^2Sin(tita))504=((90/360)*22/7*r^2)-(1/2*r^2*sin90)504=(0.25*3.142*r^2)-(0.5r2)504= 0.7855r^2 - 0.5r^2504= 0.2855r^2r^2= 504/0.2855r^2=1765.32r=Sqrt(1765.32)r=42cm(4b)Drawthe diagram

6
EarlyFace Examination Center (EEC) / Re: mathematics runs
« on: April 24, 2014, 10:59:53 am »
(12a)Given, 5cos(x+8.5)-1=0C0s(x+8.5)^o=1/5cos(x+8.5)^o=0.2x+8.5^o=Cos^-1(0.2)x+8.5^o=78.46x=78.46-8.5x=69.96^ox=70(degree)(12bii)QR^2=(PR^2)+(PQ^2)-2PR*PCOS(RPQ)P^2=32^2+24^2-2(32)(24)COS45(DEGREE)P^2=1600-1536*0.7071P^2=1600-1086.1P^2=513.88P=sqrt(513.88)p=22.67kmDistance QR=22.67km(12biii)32/sin(tita)=22.67/sin45(deg),sin(tita)=0.9981tita=sin^-1(0.9981)tita=86(degree)(5)Pr(x)=0.5, Pr(X^1)=0.5Pr(Y^1)=0.3 , Pr(Y)=0.7(a)Pr(both contracts)=Pr(x)*Pr(Y)=0.5*0.7=0.35(b)Pr(exactly one of the contracts)=Pr(X)*Pr(Y^1)+Pr(X^1)*Pr(Y)=(0.5*0.3)+(0.5*0.7)=0.15+0.35=0.5(c)Pr(Neither of the contrasts)= pr(X^1)*Pr(Y^1)=0.5*0.3=0.15(4a)Area(A)= (tita/360*pieR^2) -(1/2R^2Sin(tita))504=((90/360)*22/7*r^2)-(1/2*r^2*sin90)504=(0.25*3.142*r^2)-(0.5r2)504= 0.7855r^2 - 0.5r^2504= 0.2855r^2r^2= 504/0.2855r^2=1765.32r=Sqrt(1765.32)r=42cm(4b)Drawthe diagram

7
EarlyFace Examination Center (EEC) / Re: mathematics runs
« on: April 24, 2014, 10:51:55 am »
(3a)Let p=1/x ,q=1/yp q=5 ---->equ(1)q-p=1 ---->equ(2)p q=5 ---->equ(1)p q=1 ---->equ(2)Add equ(1) and equ(2)2q=6 , q=6/2=3Substitle q=3 into equation(1)p q=5p 3=5P=5-3p=2Recall p=1/x , 2=1/x, x=1/2q=1/y, 3=1/y , y=1/3Therefore: x=1/2 , y=1/3(3b)Wherethe road is good72=x/0.75x=72*0.75x=54kmWhere the road is bad48=x/0.75x=48*0.75x=36kmNumber of kilometers of good surface is 54km(4a)Area(A)= (tita/360*pieR^2) -(1/2R^2Sin(tita))504=((90/360)*22/7*r^2)-(1/2*r^2*sin90)504=(0.25*3.142*r^2)-(0.5r2)504= 0.7855r^2 - 0.5r^2504= 0.2855r^2r^2= 504/0.2855r^2=1765.32r=Sqrt(1765.32)r=42cm(4b)Drawthe diagram:::KEEP REFRESHING THIS

8
EarlyFace Examination Center (EEC) / Re: mathematics runs
« on: April 24, 2014, 10:51:01 am »
(12a)Given, 5cos(x+8.5)-1=0C0s(x+8.5)^o=1/5cos(x+8.5)^o=0.2x+8.5^o=Cos^-1(0.2)x+8.5^o=78.46x=78.46-8.5x=69.96^ox=70(degree)(12bii)QR^2=(PR^2)+(PQ^2)-2PR*PCOS(RPQ)P^2=32^2+24^2-2(32)(24)COS45(DEGREE)P^2=1600-1536*0.7071P^2=1600-1086.1P^2=513.88P=sqrt(513.88)p=22.67kmDistance QR=22.67km(12biii)32/sin(tita)=22.67/sin45(deg),sin(tita)=0.9981tita=sin^-1(0.9981)tita=86(degree)(5)Pr(x)=0.5, Pr(X^1)=0.5Pr(Y^1)=0.3 , Pr(Y)=0.7(a)Pr(both contracts)=Pr(x)*Pr(Y)=0.5*0.7=0.35(b)Pr(exactly one of the contracts)=Pr(X)*Pr(Y^1)+Pr(X^1)*Pr(Y)=(0.5*0.3)+(0.5*0.7)=0.15+0.35=0.5(c)Pr(Neither of the contrasts)= pr(X^1)*Pr(Y^1)=0.5*0.3=0.15(4a)Area(A)= (tita/360*pieR^2) -(1/2R^2Sin(tita))504=((90/360)*22/7*r^2)-(1/2*r^2*sin90)504=(0.25*3.142*r^2)-(0.5r2)504= 0.7855r^2 - 0.5r^2504= 0.2855r^2r^2= 504/0.2855r^2=1765.32r=Sqrt(1765.32)r=42cm(4b)Drawthe diagram

9
(3a)occupational mobility of labour:it refers to freemovement of labour from one occupation, work placeand geographical area to another.(3b) -marriage-promotion-climate-bad management(3c)-Educational and training -PromotionQ4aCrop farming is the cultivation of plants for food, animalfoodstuffs, or other commercialuses.Q5ai .Number of Members : For a public limited companyminimum seven (7) and maximum number is limited bynumber of shares. And In private limited company minimumnumber of members is two (2) and maximum number ofmember is fifty (50).ii. Subscription of Shares and Debentures: Public limitedcompany can subscribe to public to sell its shares anddebentures. It can collect huge amount of capital from thepublic by selling shares. And Private limited company by itsArticles of Association cannot subscribe shares anddebentures to the public.iii. Commencement of Business:Public limited companycannot start its operation after registration. It requiresCertificate of Commencement to start its operation. AndPrivate limited company can start its operation after gettingCertificate of Incorporation (registration) from the registrarof Company.iv. Transferabilityof Shares: Public limited company cantransfer its shares easily. Shares are transferable. AndPrivate limited company cannottransfer its shares.Registration s are imposed on transfer of shares.v. Minimum Subscription: Public limited company cannot sell

10
(3a)occupational mobility of labour:it refers to freemovement of labour from one occupation, work placeand geographical area to another.(3b) -marriage-promotion-climate-bad management(3c)-Educational and training -PromotionQ4aCrop farming is the cultivation of plants for food, animalfoodstuffs, or other commercialuses.

11
NECO 2014 TIMETABLE
June/July Neco Exam Time Table
======== Thursday 22nd May To
Wednesday 28th June (Actual date and
time will be fixed by the Council) 4114
Paper IV: Oral Arabic 1hr 20mins 4104
Paper IV: Oral French 1hr 30mins 6181
Paper I: Practical : Clothing and Textiles
3hrs 3091 Paper I: Practical : Foods and
Nutrition 3hrs 3081 Paper I: Practical :
Home Management 3hrs 4044 Paper
IV: Aural: Music 40 mins 4041 Paper I:
Performance Test, Music Technology/
Alternative 1hr 30mins
==========================
Friday 30th May 2011 Paper I:
Practical :Biology 2hrs 10.00 am -12.00
pm
======================
Wednesday 4th June 2021 Paper I:
Practical : Chemistry 2hrs 10.00 am
-12.00 pm
=====================
Thursday 5th June 2031 Paper I:
Practical : Physics 2hrs 45mins 10.00
am- 12.45 pm
============
Friday 6th June 2061 Paper I: Practical :
Agricultural Science 1hr 30mins 10.00
am -11.30 am
================
Tuesday 10th June 4063/4061 Paper
III&I: Objective & Practical : Geography
2hrs 30mins 10.00 am -12.30 pm
=====================
Wednesday 11th June 2083/2083 Paper
III &II: Objective & Essay- Computer
Studies 3hrs 10.00am-1.00pm
=========================
Thursday 12th June 4073/4072 Paper
III&II: Objective & Essay:Government
2hrs 40mins 10.00 am - 12.40 pm
=========================
Friday 13th June 4062 Paper II:
Essay:Geography 2hrs 10.00 am -12.00
pm
======================
Monday 16th June 2023/2022 Paper
III&II: Objective & Essay: Chemistry
3hrs 10.00 am- 1.00 pm
=======================
Tuesday 17th June 1012/1013 Paper II
& III: Essay & Objective - English
Language 2hr 45mins 10.00 am - 12.45
am 1014 Paper IV: Test of Orals :
English Language 45mins 12.45 pm -
1.30pm
===============
Wednesday 18th June 5033/5032 Paper
III & II: Objective & Essay :Commerce
2hrs 40mins 10.00 am - 12.40 am
========
Thursday 19th June 2033/2032 Paper
III & II: Objective & Essay: Physics 3hrs
10.00 am - 1.00 pm
======================
Friday 20th June 2063/2062 Paper III &
II: Objective & Essay : Agricultural
Science 2hrs 30mins 10.00 am -12.30
pm 2063/2062 Paper III & II: Objective
& Essay : Insurance 2hrs 40mins 3.00
pm - 5.40 pm
=========================
Monday 23rd June 1023 Paper III:
Objective: General Mathematics 1hr
45mins 10.00 am - 11.45 am 1022
Paper II: Essay : General Mathematics
2hrs 30mins 12.00 pm -2.30 pm
==========================
Wednesday 25th June 2043 Paper III:
Objective :Further Mathematics 2hrs
10.00 am - 12.00pm 2042 Paper II:
Essay: Further Mathematics 2hrs
30mins 12.00 pm - 2.30pm 4093/4094
Paper III & IV: Objective & Prose:
Literature-in-English 2hrs 15mins 3.00
pm -5.15 pm
==========================
Thursday 26th June 2013/2012 Paper
III & II: Objective & Essay: Biology 2hrs
30mins 10.00 am-12.30 pm 4113/4112
Paper III & II: Objective, Essay &
Literature- Arabic 3hrs 30mins 2
pm-5.30 pm
==================
Friday 27th June 4013/4012 Paper III &
II: Objective & Essay: Christian Religious
Studies 2hrs 30mins 10.00 am- 12.30
pm 4023/4022 Paper III & II: Objective
& Essay:Islamic Studies 2hrs 10.00 am-
12.30 pm
==========================
Monday 30th June 4083/4082 Paper III
& II: Objective & Essay :Economics 3hrs
10.00 am-1.00 pm
==========================
Tuesday 1sh July 4123/4122 Paper III &
II: Objective & Essay :Hausa 3hrs 10.00
am -1.00 pm 4133/4132 Paper III & II:
Objective & Essay :Igbo 3hrs 10.00
am-1.00 pm 4143/4142 Paper III & II:
Objective & Essay :Yoruba 3hrs 10.00
am-1.00 pm 4153/4152 Paper III & II:
Objective & Essay :Edo 3hrs 10.00
am-1.00 pm 4163/4162 Paper III & II:
Objective & Essay :Efik 3hrs 10.00 am
-1.00 pm 4173/4172 Paper III & II:
Objective & Essay :Ibibio 3hrs 10.00
am-1.00 pm
=========================
Thursday 3rd July 3011 Paper I:
Practical:Technical Drawing 3hrs 10.00
am-1.00 pm 4092 Paper II: Drama &
Poetry:Literature In English 1hr 40mins
2.30pm -4.10pm
==========================
Friday 4th July 3013/3014 Paper III &
IV: Objective & Drawing :Technical
Drawing 2hrs 30mins 10.00 am-12.30
pm
==========================
Monday 7th July 4053/4052 Paper III &
II: Objective & Essay: history 3hrs
10.00 am-1pm 3013/3014 Paper III &
II: Objective & Essay :Data processing
3hrs 2pm- 5pm 6333/6332 Paper III &
II: Objective & Essay; Marketing 2hrs
40mins 2pm-4.400pm
========================
Wednesday 9th July 4033/4032 Paper
III & II: Object: Office practice 3hrs
30mins 2pm -5pm
=======================
6271 Paper I: Practical :Data processing
2hrs 30mins 10.00 am-1pm
=======================

12
Burette reading: final burette reading(cm^3)Initial burette reading (cm^3)Volume of acid used(cm^3)|Rough|:22.40,0.0 ,22.40,|1st|:22.00,0.00,22.00|2nd|:22.00,0.00,22.00|3rd|:22.00,0.00,22.00Average titre value=22.00+22.00+22. 00/3=22.00cm^3(1bi) 2.45=250cm root 3Xg= 1000cm root 3Xg = 1000x2.45/250 =2450/250Xg = 9.8gdm^-3Cb=conc. Of B in moldm^-3Molar mass of Na2CO3=23*2+12+3*16 = 106gCb= concentration in gdm^-3/molar mass=9.8/106=0.09245 moldm^ -3Concentration of B in moldm^3 = 0.0925 moldm -3.(1bii)CAVA/CBVB = na/nbWhere ca= concentration of acid in moldm^-3Cb =concentration of base in moldm^-3VA= volume of acidVb= volume of baseNa=no of mole of acidNb=no of mole of baseCa= CB*VB*na/va * nbCa = 0.0925*25*22.10*1Ca= 4.625/22.10 = 0.209 moldm(1biii) Molar of HCl=1+35.5=36.5gConcentration of A in gdm^-3=molar mass * concentration in moldm^ -3=36.5*0.209=7.63gdm^ -3(1biv) Na2CO3 + 2Hcl --- 2Nacl + H2O + CO2106g of Na2CO3 =1*22.4dm^-39.8g = xdm^3:. xdm^-3=9.8*1*22.4/106=219.52/106= 2.071dm^-3

13
(4) A climate is the average weather
condition of a place over a period of time
usually measured over a period of about
35years.
(4c) The temperature of a place decreases
by 6.5degree c through every 1000m
ascent i.e.
Sea level =40 degree c
6000m = 40 degree c - (6.5degree c*6)
(1a) To draw the map to a new scale from
1:50,000 to 1:25,000 means to enlarge
the map to twice its original size. I.e old
scale/new scale =50,000/25000=2
=============================
(3a) Latitudes are angular distances
drawn along the earth surface dividing
the earth north and south of the equator.
They include the equator, tropics of
cancer and Capricorn, the arctic and
antarctic circles and the north and south
pole.
(3b)
(i) They are both measured in angles.
(ii) They both combine to determine the
exact position of places on the earth
(iii) They both contain great circles.
(3cii) The lines of latitudes are called
parallels while that of longitudes are
called meridians.
(3ciii) The lines of latitudes are used for
calculating distance while that of
longitudes are used for calculating local
time.
(3civ) The lines of latitudes run from west
to east while that of longitudes run from
north to south.
(3cv) The lines of latitude measure up to
180 degree while that of longitude
measure up to 360 degree.

14
(4) A climate is the average weather
condition of a place over a period of time
usually measured over a period of about
35years.
(4c) The temperature of a place decreases
by 6.5degree c through every 1000m
ascent i.e.
Sea level =40 degree c
6000m = 40 degree c - (6.5degree c*6)
(1a) To draw the map to a new scale from
1:50,000 to 1:25,000 means to enlarge
the map to twice its original size. I.e old
scale/new scale =50,000/25000=2
=============================
(3a) Latitudes are angular distances
drawn along the earth surface dividing
the earth north and south of the equator.
They include the equator, tropics of
cancer and Capricorn, the arctic and
antarctic circles and the north and south
pole.
(3b)
(i) They are both measured in angles.
(ii) They both combine to determine the
exact position of places on the earth
(iii) They both contain great circles.
(3cii) The lines of latitudes are called
parallels while that of longitudes are
called meridians.
(3ciii) The lines of latitudes are used for
calculating distance while that of
longitudes are used for calculating local
time.
(3civ) The lines of latitudes run from west
to east while that of longitudes run from
north to south.
(3cv) The lines of latitude measure up to
180 degree while that of longitude
measure up to 360 degree.

15
(5a) Chemically formed sedimentary rocks
are precipitation from rock solutions.
(5b) sodium chloride, dolomite and
gypsum.
(5c) they are mainly important as salts
which includes table salts which is a
mineral component of food for man and
also chemical salts used in laboratory.

16
(1a) To draw the map to a new scale from 1:50,000 to 1:25,000
means to enlarge the map to twice its original size. I.e old
scale/new scale =50,000/25000=2
=============================
(3a) Latitudes are angular distances drawn along the earth
surface dividing the earth north and south of the equator. They
include the equator, tropics of cancer and Capricorn, the arctic
and antarctic circles and the north and south pole.
(3b)
(i) They are both measured in angles.
(ii) They both combine to determine the exact position of places
on the earth
(iii) They both contain great circles.
(3cii) The lines of latitudes are called parallels while that of
longitudes are called meridians.
(3ciii) The lines of latitudes are used for calculating distance
while that of longitudes are used for calculating local time.
(3civ) The lines of latitudes run from west to east while that of
longitudes run from north to south.
(3cv) The lines of latitude measure up to 180 degree while that
of longitude measure up to 360 degree.
==============================
(4) A climate is the average weather condition of a place over a''
period of time usually measured over a period of about 35years.:

17
(1a) To draw the map to a new scale from 1:50,000 to 1:25,000
means to enlarge the map to twice its original size. I.e old
scale/new scale =50,000/25000=2
=============================
(3a) Latitudes are angular distances drawn along the earth
surface dividing the earth north and south of the equator. They
include the equator, tropics of cancer and Capricorn, the arctic
and antarctic circles and the north and south pole.
(3b)
(i) They are both measured in angles.
(ii) They both combine to determine the exact position of places
on the earth
(iii) They both contain great circles.
(3cii) The lines of latitudes are called parallels while that of
longitudes are called meridians.
(3ciii) The lines of latitudes are used for calculating distance
while that of longitudes are used for calculating local time.
(3civ) The lines of latitudes run from west to east while that of
longitudes run from north to south.
(3cv) The lines of latitude measure up to 180 degree while that
of longitude measure up to 360 degree.
==============================
(4) A climate is the average weather condition of a place over a
period of time usually measured over a period of about 35years.

18
Verified PHYSICS OBJ:
1-10: DABABACBBB
11-20: DCABCBBAAC
21-30: ABBCCDCDBB
31-40: CBDCBCDDAA
41-50: DDBADBDAAB

19
if u hav whatsapp add me wit dis nomber 07069534646 i will send u answer viar whatsapp

20
8a i) Rotational Motion
I.The movement of the blades of a fan.
II.The motion of the wheel of a car.
(ii) Linear Motion
I.The motion of a boy from a point to
another
point on a straight line.
II.The motion of a ball on a straight
course.
(8b.)
AIM: To determine the density of an
irregularly
shaped solid
APPARATUS: An irregularly shaped solid, a
beam balance,a measuring cylinder,a price
of thread
PROCEDURE: Place the irregularly shaped
solid
on the beam balance and measured its
mass as
mkg and place the solid in the measuring
cylinder that contains water up to say
xm^3
with the aid of the thread.Record the
new volume of ym^3.

21
8a i) Rotational Motion
I.The movement of the blades of a fan.
II.The motion of the wheel of a car.
(ii) Linear Motion
I.The motion of a boy from a point to
another
point on a straight line.
II.The motion of a ball on a straight
course.
(8b.)
AIM: To determine the density of an
irregularly
shaped solid
APPARATUS: An irregularly shaped solid, a
beam balance,a measuring cylinder,a price
of thread
PROCEDURE: Place the irregularly shaped
solid
on the beam balance and measured its
mass as
mkg and place the solid in the measuring
cylinder that contains water up to say
xm^3
with the aid of the thread.Record the
new volume of ym^3.

22
(9d) Given,
mass of pepper soup, m=800g
=0.800kg
Initial temperature of pepper soup,
tita =30degree C
Power of the microwave oven,
P=1200w
Time taken, t =3minutes =3*60s =180s.
Specific heat capacity of pepper soup,
c=4000j/kg k.
(9di)final temperature of the pepper soup,
@2=? ,
Heat given by the microwave oven= Heat absorbed by the
pepper soup.
Pt= mc(@2 - @1),
1200 * 180= 0.8 * 4000(@2 - 30),
216000= 3200(@2 - 30),
@2 - 30=67.5 ,
@2 = (67.5 + 30)degrees ,
@2 = 97.5degree Celsius
-------------------------------------------
NOTE THAT @ MEANS TITA SIGN.
------------------------------------------
(9dii) containers with tight-fitting lids are not suitable for use in
microwave cooking because there must be room for expansion
which can only be catered for if the lids are not tight-fitted
(9diii) there is dent on the container because the final
temperature was so large compared to the material used in
making the container,I.e plastic.and plastics are not very good
for such heat.The cooling of the plastic cannot be uniform.

Pages: [1]


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