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