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About the gases in Earth's atmosphere, and their cycles.


Air surrounding the Earth.


mixture of mineral and rock particles, dead organisms, air, and water. It is formed on the Earth's crust and supports plant life.

nitrogen fixation

Types of bacteria in teh soil that change nitrogen gas into a nitrogen form plants can use.

energy pyramid

amount of energy available at each feeding level in an enviorment


percentage of nitrogen in earth's atmosphere


percentage of oxygen in Earth's atmosphere


percentage of carbon dioxide in Earth's atmosphere


process that uses carbon dioxide


process that uses oxygen

water and its importance

Without it, many important processes cannot be done/ most organisms are at least half of this fluid, which is a major one for all organisms

soil is abiotic and biotic

It has decaying organisms and rock and mineral particles

sunlight and its importance

It is the main energy source for all life on earth

temperature and precipitation

Most important components of climate

rain shadow effect

Wind is blown up and cooled to where it is released as precipitation. When the cool air finishes crossing the mountain, it has lost most of its moisture.

converts light energy into chemical energy

how photosynthesis converts energy

hydrothermal vents

the vents chemosynthesis creates energy in

how chemosynthesis creates energy

this process creates energy when nutrients in teh hot water feed chemosynthetic bacteria that feed the consumers in a hydrothermal vent

a food web is many different food chains

the relation between food webs and food chains

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