Water is made up of these two elements.
What are oxygen and hydrogen?
Acid rain is the result of two steps in these two cycles, combustion in one and precipitation in the other.
What are the water and carbon cycles?
This step of the carbon cycle involves carbon being released from burning fossil fuels
What is combustion?
When nitrogen is converted into a biologically available form
What is nitrogen fixation?
The step of the water cycle in which water falls from the sky as a liquid or a solid
What is precipitation?
Excess nitrogen is carried into water ways due to this step of the water cycle.
What is surface runoff?
In the carbon cycle process of deposition, where does the carbon from decaying animals and plants end up?
What is the ground?
These are the organisms that can carry out nitrogen fixation
What are bacteria?
The step of the water cycle in which liquid water turns into a gas
What is evaporation?
These two steps of the water cycle both involve water turning from a liquid into a gas.
What is evaporation and transpiration?
This step of the carbon cycle involves the carbon in shells being used to make limestone
What is sedimentation?
When bacteria live in the roots of plants and fix nitrogen for them, they are called this.
What are symbiotic nitrogen fixers?
The step of the water cycle where water sinks into the ground to become groundwater
Infiltration
These two cycles both have an assimilation step in them.
What are the carbon and nitrogen cycles?
In assimilation, carbon is taken and used to make these substances
What are macromolecules?
The step of the nitrogen cycle where nitrogen is taken to be used in the creation of macromolecules
What is assimilation?
This step of the water cycle involves water evaporating through the leaves of plants
What is transpiration?
When excess nitrogen washes into waterways, it is usually because farmers have used too much of this substance.
What is fertilizer?
When carbon dioxide dissolves into water vapor, it forms this type of precipitation.
What is acid rain?
The step of the nitrogen cycle when biologically usable nitrogen is converted back into an unusable form.
What is denitrification?