Nitrogen gas makes up approximately this percentage of the Earth's atmosphere.
What is 78%?
100
Oxygen gas makes up approximately this percentage of Earth's atmosphere?
What is 20%?
100
Some of the Carbon on Earth is stored in the atmosphere in this compound.
What is Carbon Dioxide?
100
Most of the water that moves through the water cycle is lifted into the atmosphere from these locations.
What are the oceans?
100
Deoxyribonucleic acid is also known as __________.
What is DNA?
200
In order to be useful to plants Nitrogen gas must go through this process.
What is fixation?
200
The primary way that Oxygen released into the atmosphere is through is process.
What is photosynthesis?
200
During the day plants absorb Carbon Dioxide and convert it into organic Carbon through this process.
What is Photosynthesis?
200
When water vapor condenses into clouds it becomes to heavy for the clouds to support and it begins to fall in a process called this.
What is precipitation?
200
The father of Genetics.
Who was Gregor Mendel?
300
These organisms in the soil play a major part in the fixation of Nitrogen?
What are bacteria?
300
Many of the plants that release Oxygen into the atmosphere are not located on land but in this location.
What are the oceans?
300
During photosynthesis Carbon Dioxide is taken into plants and Oxygen gas is expelled into the atmosphere while this is stored within the plants.
What is Carbon?
300
Precipitation that hits the surface and does not seep into the ground will attempt to move into areas that will transport it. This process is called.
What is run off?
300
When an organism gains 10 Joules of energy from 100 Joules of energy available in an organism
What is the 10% Rule?
400
Farmers will often use Nitrogen compounds for this purpose.
What is fertilizer?
400
Some of the Oxygen gas in the atmosphere is converted into this which protects us from the UV rays of the sun.
What is Ozone?
400
As humans and animals breathe we take in Oxygen gas and release Carbon Dioxide gas in a process known as this
What is respiration?
400
As plants absorb groundwater into their roots the sunlight will heat up the atmosphere and cause some of this water from plants to be turned back into water vapor in a process called.
What is transpiration?
400
Individuals who eat "other" organisms and those who produce their own food.
What are heterotrophs and autotrophs?
500
These are at least 2 examples of compounds that are used by plants after the process of Nitrogen fixation.
What are Ammonium, Nitrates and Nitrites?
500
In the oceans, there are large areas of plants that are responsible for a huge part of the Oxygen cycle. These plants are called this.
What is Phitozooplankton or plankton?
500
The primary way the Carbon is returned back to the atmosphere is through the burning of these.
What are fossil fuels?
500
All of the fresh water that does not run off into rivers, streams and lakes will attempt to seep into the ground in a process called.