POLLUTION OF AIR AND WATER
Science
8th Grade
NGSS covered
Used 4+ times
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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the percentage of oxygen present in air?
20.10%
78.08%
0.97%
20.95%
21.95%
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
CFC is also called ____
foners
freons
froen
cfc
Tags
NGSS.MS-ESS3-4
NGSS.MS-PS1-3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Discharge of treated industrial sewage into water bodies causes water pollution
TRUE
FALSE
Tags
NGSS.MS-ESS3-3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is not a greenhouse gas ???
Carbon dioxide
Methane
Sulphur dioxide
Nitrogen
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Carbon monoxide is released from the combustion of fossil fuels.
FALSE
TRUE
MAYBE
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is major source of water pollution?
Industrial wastes
Untreated sewage
Use of fertilizers
Toxic metals
Tags
NGSS.MS-ESS3-4
NGSS.MS-ESS3-3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A chemical method used for purifying water is :
Filtration
Chlorination
Decantation
None of these
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