Show:
Carbon Cycle
Phosphorus Cycle
Water Cycle
Nitrogen Cycle
Sulfur Cycle
100
Carbon exists in the atmosphere as...
What is carbon dioxide CO2?
100
Phosphorus is primarily found in...
What is rocks and sediment?
100
This force draws water back to the earth.
What is gravity?
100
Nitrogen exists in the atmosphere as..
What is N2 (dinitrogen gas)?
100
The sulfur cycle is a(n) atmospheric or land cycle?
What is atmospheric?
200
The largest reservoir of carbon on land is found in..
What is sedimentary rocks?
200
Phosphate is formed by...
What is the reaction of Phosphorus and O2 in the atmosphere?
200
An aquifer is...
What is an underground reservoir of water?
200
Nitrogen fixation refers to..
What is the conversion of N2 into NH3 (ammonia) and NO3- (nitrate) through abiotic and biotic processes?
200
Sulfur is an important biological molecule because..
What is it is a key component in most proteins which control many bodily functions?
300
In what important is Carbon incorporated into in plants.
What is glucose?
300
This important molecule that contains phosphorus is used for energy.
What is ATP?
300
The terms transpiration refers to..
What is the loss of water in plants through their leaves?
300
Name at least two types of decomposers that break down nitrogen compounds in dead organisms back into ammonium.
What is mushrooms, worms, snails, slugs, bacteria?
300
Sulfur exists in these forms in the atmosphere.
What is H2S (hydrogen sulfide) and SO2 (sulfur dioxide)?
400
Carbon is found in the shells/skeletons or organisms in the form of this compound.
What is calcium carbonate?
400
Humans mine phosphorus for the purpose of..
What is using it in soaps and fertilizers?
400
Runoff includes...
What is water from rain draining off of the land, flow from rivers, melting glaciers and snowfields?
400
Nitrifying bacteria work to convert ... into ...
What is ammonium (NH4+) into NO2- (nitrite) and then NO3- (nitrate)?
400
Sulfur is released into the atmosphere through these natural methods.
What is decomposition of dead organisms and volcanic eruptions?
500
Explain how CO2 in the air can cause ocean acidification. What chemical process happens?
What is CO2 combines with water to form Bicarbonate ions which are acidic.
500
This percentage of water enters the hydrologic cycle.
What is 80%?
500
Denitrifying bacteria in soil and stagnant water convert nitrate into ....and eventually ...
What is nitrous oxide (N2O) and N2 (nitrogen gas)?