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Ecology Ch 3
Test Description: Ecosystems how do they work
Instructions: Answer all questions to get your test result.
1) Ecology is the study of
A
biotic components of the environment
B
the interactions between the biotic and abiotic
C
the abiotic elements of the environment
D
human impact on the environment
2) The amount of the earth’s surface covered by land
A
50%
B
75%
C
25%
D
90%
3) Organisms that complete the final breakdown and recycling of organic materials from the remains of all organisms are the
A
producers
B
omnivore
C
decomposers
D
consumers
4) Which is the rock soil and sediments?
A
geosphere
B
hydrosphere
C
biosphere
D
atmosphere
5) Which is not true of green house gases?
A
makes the earth warm enoough to support life
B
ozone and water vapor are greenhouse gases
C
has decreased since humans have increased carbon dioxide, methane, and nitrogen into the air
D
warm the lowwer atmosphere and the earths surface
6) Which of the following is a producer
A
hawk
B
grass
C
worm
D
song bird
7) A niche is a
A
home
B
job or function in an ecosystem
C
a made up word
D
dance
8) Which nutrient is not normally in the atmosphere?
A
phospherous
B
carbon
C
sulfur
D
nitrogen
9) When water forms into clouds it
A
runs off
B
perculates
C
condenses
D
transpires
10) Which is a way humans impact the carbon cycle?
A
cause plant overgrowth in streams
B
provide run off into waterways
C
create acide rain from smelting
D
add more into the atmospher by burning fossil fuels
*select an answer for all questions
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