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Nutrient Cycles
Test Description: Oxygen, Nitrogen, Carbon, and Rock Cycles
Instructions: Answer all questions to get your test result.
1) Which of the following is not a type of rock?
A
Igneous
B
Sedimentary
C
Ignamorphic
D
Metamorphic
2) How are metamorphic rocks formed?
A
From the sediments of other rocks
B
They are not formed, they exist naturally from the earth's crust
C
By cooling and solidification of magma or lava
D
By heat and pressure
3) Burning fossil fuels adds carbon dioxide to the atmosphere. If we continue to add carbon dioxide to the atmosphere at the current rate, how will this affect the carbon cycle?
A
The number of carbon atoms on Earth will increase
B
The carbon cycle will be unaffected
C
The number of carbon atoms in the atmosphere will decrease
D
The number of carbon atoms in the atmosphere will increase
4) The cycle where plants use carbon dioxide exhaled from humans and turn into oxygen and food for themselves is which cycle?
A
Water cycle
B
Nitrogen cycle
C
Carbon cycle
D
Oxygen cycle
5) In the oxygen cycle, which group of organisms replenishes a large portion of the atmospheric oxygen supply?
A
fungi
B
plants
C
insects
D
mammals
6) What step in the rock cycle would be required to change an igneous rock into a sedimentary rock?
A
melting and cooling
B
weathering, erosion, deposition, compaction, and cementation.
C
melting and pressure
D
heat and pressure
7) The carbon cycle relies on the use of....
A
Decay
B
Respiration
C
Photosynthesis
D
Photosynthesis and Respiration
8) In the nitrogen cycle, nitrogen is continuously recycled. Which types of organisms break down nitrogen compounds in dead organisms and recycle them into the soil?
A
herbivores
B
green plants
C
autotrophs
D
bacteria
9) What is the role of bacteria in the nitrogen cycle?
A
Increasing photosynthesis in plants
B
Increasing levels of nitrogen in consumers
C
Reducing the amount of ammonia in the soil
D
Converting atmosphereic nitrogen to a more usable form for plants
10) We know the carbon cycle involves moving carbon around the earth in a cycle. Plants and trees join in the carbon cycle in a couple of ways. Which one will clean carbon out of the air?
A
by transpiration
B
by dying and decomposing into the earth making fossil fuels
C
by absorbing water through their roots
D
by completing photosynthesis
11) The oxygen found in the water molecule (H20) is the oxygen that fish can use to breathe.
A
False
B
True
12) When humans burn fossil fuels, most of the carbon quickly enters the ________ as carbon dioxide.
A
sun
B
air
C
atmosphere
D
water
*select an answer for all questions
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