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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
disease
B
plague
C
smog
D
pollution
2) noise and light can be considered pollution
A
false
B
true
3) Which is NOT a form of natural air pollutants?
A
smoke from forest fires
B
burning gasoline
C
dust from wind storms
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 air we breathe
D
into the water
5) __________ is crucial to every living thing on earth
A
food
B
oxygen
C
water
D
air pollution
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
air pollution
B
water pollution
C
none of these
D
land pollution
8) waste that can corrode, catch fire, explode, or make people sick are called
A
hazardous waste
B
explosive waste
C
dangerous waste
D
harmful waste
9) The average american throws away about ____ pounds of garbage per week
A
80
B
56
C
15
D
26
10) This country throws away more garbage than any country in the world
A
Africa
B
Armenia
C
Argentina
D
America
11) People living in big cities may not be able to see stars at night because of
A
water pollution
B
light pollution
C
land pollution
D
noise pollution
12) which of these is considered a renewable resource?
A
natural gas
B
wind
C
oil
D
coal
13) Today there are about ___ billion people living on Earth
A
6 billion
B
8 billion
C
2 billion
D
1 billion
14) Experts estimate that by 2050 there may be as many as ___ billion people living on Earth
A
8 billion
B
6 billion
C
10 billion
D
12 billion
15) Every habitat has several types of plants, animals, and organisms that within it. This is called ...
A
biodiversity
B
community
C
populations
D
ecology
16) clear cutting a forest to build new homes for people is an example of
A
biodiveristy
B
pollution
C
habitat destruction
D
habitat conservation
17) removing all of the trees from an area is called
A
wood chopping
B
habitat clearing
C
deforestation
D
tree cutting
18) The extracting of valuable minerals or other geological materials from the earth is called
A
mining
B
deforesting
C
agriculture
D
trawling
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
reusing
D
recycling
20) which of these is not one of the three ways we can conserve resources
A
reclaim
B
recycle
C
reduce
D
resue
*select an answer for all questions
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