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What is the water cycle?
ecosystem health
atmosphere, the biosphere and rocks
biotic factors and abiotic factors
respiration
It is given off as heat.
It is the continuous movement of water under, on or above the Earth's surface.
grass
It is the balance of carbon in each reservoir.
Ten percent of energy is transferred from one level to the next level on the energy pyramid. What happens to the other 90% of energy?
ecosystem health
atmosphere, the biosphere and rocks
biotic factors and abiotic factors
respiration
It is given off as heat.
It is the continuous movement of water under, on or above the Earth's surface.
grass
It is the balance of carbon in each reservoir.
What is biodiversity an indicator of?
ecosystem health
atmosphere, the biosphere and rocks
biotic factors and abiotic factors
respiration
It is given off as heat.
It is the continuous movement of water under, on or above the Earth's surface.
grass
It is the balance of carbon in each reservoir.
What are the three main reservoirs of the oxygen cycle?
ecosystem health
atmosphere, the biosphere and rocks
biotic factors and abiotic factors
respiration
It is given off as heat.
It is the continuous movement of water under, on or above the Earth's surface.
grass
It is the balance of carbon in each reservoir.
What removes oxygen from the air?
ecosystem health
atmosphere, the biosphere and rocks
biotic factors and abiotic factors
respiration
It is given off as heat.
It is the continuous movement of water under, on or above the Earth's surface.
grass
It is the balance of carbon in each reservoir.
Which of the following is a biotic factor of an ecosystem?
ecosystem health
atmosphere, the biosphere and rocks
biotic factors and abiotic factors
respiration
It is given off as heat.
It is the continuous movement of water under, on or above the Earth's surface.
grass
It is the balance of carbon in each reservoir.
What is the global carbon budget?
ecosystem health
atmosphere, the biosphere and rocks
biotic factors and abiotic factors
respiration
It is given off as heat.
It is the continuous movement of water under, on or above the Earth's surface.
grass
It is the balance of carbon in each reservoir.
Ecosystems have to have two factors working together in order to function. What are those two factors?
ecosystem health
atmosphere, the biosphere and rocks
biotic factors and abiotic factors
respiration
It is given off as heat.
It is the continuous movement of water under, on or above the Earth's surface.
grass
It is the balance of carbon in each reservoir.
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