Human Effects on the Cycles
The two cycles that fertilizers often affect.
What are the phosphorus and nitrogen cycles?
The process plants use to make sugar and oxygen
What is photosynthesis?
This is where phosphorus is mostly contained. (2 answers)
What are rocks and minerals?
Our atmosphere is comprised of 78 percent of this gas.
What is Nitrogen?
These are three common examples of fossil fuels that humans burn.
What are coal, oil, and natural gas?
The process animals use this oxygen-involving process to make more CO2.
What is respiration
This the the water formation that commonly dissolves phosphorus.
What is rivers?
This process turns water vapor into clouds.
What is condensation.
This is how fertilizers get into places they do not belong.
What is as runoff from water.
DNA is made, in part, up of this.
What is phosphorus.
This is how organic matter is turned to fossil fuels over time.
What is decomposition, heat, and pressure?
The greenhouse effect is caused by too much of this gas
What is carbon?
This is what happens when there is too much fertilizer in the soil.
What is plant overgrowth?
This macromolecule is made from nitrogen in some organisms.
What is protein?
These natural formation of rocks can release vast amounts of stored carbon into the atmosphere in a short amount of time.
What are volcanoes?
This is the chemical sign for Nitrogen
N2
This is where phosphate fertilizer comes from.
What is phosphate rocks?
In this process, bacteria convert ammonia to nitrogen gas.
What is denitrification.
This is where carbon comes from to get into rocks to carbonate them.
What is from carbon in marine sediments?
The process by which plants directly release water into the atmosphere through their roots.
What is transpiration?