Show:
Water Cycle
Carbon Cycle
Nitrogen Cycle
Phosphorus Cycle
100
What is precipitation?
Water vapor falls from the clouds as rain,sleet,hail, or snow.
100
How does carbon enter the atmosphere?
Through carbon dioxide which is produced by respiration and combustion.
100
What step uses a special bacteria to convert nitrogen gas to ammonia?
Nitrogen Fixation
100
_____consume herbivores
carnivores
200
Evaporation: Water changes from a ___1___ to a ___2___
1) liquid 2)gas
200
Why do plants absorb carbon dioxide from the atmosphere?
To make carbohydrates during the process of photosynthesis.
200
____________ turns the ammonia into nitrite ions which plants can use as nutrients.
Nitrification.
200
Name two decomposers
bacteria and fungi
300
The water cycle can only occur up to five times in any given ecosystem. TRUE OR FALSE?
false- the water cycle never ends!
300
Why is it important for animals to eat plants?
So carbon compounds are passed along the food chain.
300
What occurs during Ammonification?
Decomposer (bacteria) changes the nitrogen-rich waste compounds into simpler ones.
300
Where are phosphates commonly found in our bodies?
Bones,blood,muscles,and nerves
400
Evection occurs when...
Water moves through the air
400
What can possibly happen to plants and animals once they have been decomposed?
Decomposed plants and animals may be used as fossil fuels for combustion.
400
How can nitrogen turn into nitrate?
By the strike of lightning.
400
Describe sedimentation
The animal waste and decomposed plants settle to the bottom of the water.
500
What is the term given to evaporation occurring in plants?
transpiration
500
Why does carbon go into rivers?
To make limestone - a sedimentary rock composed of calcium carbonate.
500
What occurs during assimilation?
Nitrates are absorbed into plant cells and reduced to ammonium.
500
Due to geological uplifting, the phosphates are able to go from the water back to the rocks. TRUE OR FALSE?
true!