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6th Grade- Unit 8 Pollution
Test Description: Pollution, human population growth
Instructions: Answer all questions to get your test result.
1) The introduction of contaminants into an environment that causes harm to human health, other living organisms and the environment is called
A
plague
B
disease
C
pollution
D
smog
2) noise and light can be considered pollution
A
true
B
false
3) Which is NOT a form of natural air pollutants?
A
dust from wind storms
B
smoke from forest fires
C
burning gasoline
D
erupting volcanoes
4) the cloud of smog that can be seen coming from a factory goes
A
back into the factory
B
into the atmosphere and disappears
C
into the water
D
into the air we breathe
5) __________ is crucial to every living thing on earth
A
food
B
water
C
oxygen
D
air pollution
6) What is not an effect of chemicals entering the water?
A
humans are at risk
B
the water is cleaner because of the chemicals
C
bacteria contaminates the water
D
fish and other animals die
7) The most obvious form of pollution that we can see
A
land pollution
B
water pollution
C
air pollution
D
none of these
8) waste that can corrode, catch fire, explode, or make people sick are called
A
harmful waste
B
hazardous waste
C
explosive waste
D
dangerous waste
9) The average american throws away about ____ pounds of garbage per week
A
56
B
15
C
26
D
80
10) This country throws away more garbage than any country in the world
A
Argentina
B
Africa
C
America
D
Armenia
11) People living in big cities may not be able to see stars at night because of
A
noise pollution
B
light pollution
C
land pollution
D
water pollution
12) which of these is considered a renewable resource?
A
wind
B
natural gas
C
oil
D
coal
13) Today there are about ___ billion people living on Earth
A
6 billion
B
1 billion
C
8 billion
D
2 billion
14) Experts estimate that by 2050 there may be as many as ___ billion people living on Earth
A
6 billion
B
12 billion
C
10 billion
D
8 billion
15) Every habitat has several types of plants, animals, and organisms that within it. This is called ...
A
biodiversity
B
populations
C
ecology
D
community
16) clear cutting a forest to build new homes for people is an example of
A
biodiveristy
B
pollution
C
habitat conservation
D
habitat destruction
17) removing all of the trees from an area is called
A
wood chopping
B
deforestation
C
tree cutting
D
habitat clearing
18) The extracting of valuable minerals or other geological materials from the earth is called
A
agriculture
B
trawling
C
deforesting
D
mining
19) the careful utilization of Earth's Natural resources in order to prevent them from being used up forever is called
A
reusing
B
conservation
C
recycling
D
reducing
20) which of these is not one of the three ways we can conserve resources
A
recycle
B
reclaim
C
reduce
D
resue
*select an answer for all questions
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