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WorksheetsBiogeochemical Cycles
Total questions: 20
Worksheet time: 14mins
Name
Class
Date
1.
Which is NOT a process of the water cycle?
a)
precipitation
b)
freezing
c)
transpiration
d)
evaporation
2.
The process of plants losing water through their leaves is called ____.
a)
condensation
b)
evaporation
c)
transpiration
d)
exhaling
3.
What are the swellings found on the roots of legumes called?
a)
noodles
b)
nodularisms
c)
nodules
d)
tubers
4.
What is the only process that removes carbon from the atmosphere?
a)
combustion
b)
cellular respiration
c)
photosynthesis
d)
decomposition
5.
These gases, such as carbon dioxide, trap heat in the Earth's atmosphere causing global warming
a)
Global warming gases
b)
Hot House gases
c)
Green House gases
d)
Thermal pollution
6.
The elements carbon, oxygen, hydrogen and nitrogen combined make up about 96% of our bodies (carbon is about 18%). Carbon is necessary for life because it is a(n)
a)
uncommon element in all living things.
b)
element found only in the atmosphere
c)
excellent bonder
d)
is found mostly in dead things.
7.
Respiration is the process by which ____________ is consumed and _______________ is produced.
a)
Carbon, Oxygen
b)
Oxygen, Carbon dioxide
c)
H20, oxygen
d)
Carbon, H2O
8.
This process is responsible for most environmental problems of excess nitrogen and phosphorus entering streams, lakes and oceans.
a)
decomposition
b)
emissions from automobiles
c)
agriculture and house hold runoff
d)
photosynthesis
9.
Which of the following is known as the "sedimentary" cycle because its reservoir is sedimentary rock?
a)
Sulfur cycle
b)
Nitrogen cycle
c)
Phosphorus cycle
d)
Carbon cycle
10.
Phosphorous is needed in organisms for the production of
a)
ADP and ATP.
b)
Cellular membranes.
c)
Deoxyribonucleic and ribonucleic acids.
d)
All of the answers are correct
11.
N03 is also known as
a)
ammonia
b)
nitrite
c)
nitrogen
d)
nitrate
12.
This is released by the weathering of rocks.
a)
Carbon
b)
Oxygen
c)
Phosphorus
d)
Nitrogen
13.
Identify the cycle pictured.
a)
The Water cycle
b)
The Carbon cycle
c)
The Nitrogen cycle
d)
The Phosphorus cycle
14.
Identify the cycle pictured.
a)
The Water cycle
b)
The Carbon cycle
c)
The Nitrogen cycle
d)
The Phosphorus cycle.
15.
How do animals get nitrogen?
a)
the atmosphere
b)
eating other organisms
c)
rainwater
d)
lightning
16.
What is the hydrosphere?
a)
Water on the earth's surface
b)
Oceans of the Earth
c)
Rivers, oceans and lakes of the Earth
d)
None of the above
17.
Using fossil fuels is a safe for the environment.
a)
True
b)
False
18.
Organisms require nitrogen to make which of the following?
a)
glucose and starch
b)
lipids and nucleic acids
c)
proteins and nucleic acids
d)
carbohydrates and proteins
19.
What is the energy source for the water cycle?
a)
the sun
b)
the earth
c)
water
d)
the moon
20.
What is condensation?
a)
The part of the water cycle when the sun heats up water, turning it from a liquid into water vapor or steam. It rises from the ground into the air.
b)
The part of the water cycle when the water vapor in the air gets cold. The water turns back into a liquid and forms clouds.
c)
The part of the water cycle when clouds get heavy and can no longer hold the liquid water. This causes the water to fall from the sky to the earth as rain, snow, sleet, or hail.
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