What is oxygen produced by?
What is photosynthesis?
The formation of fossil fuels is driven by what energy?
What is solar energy?
How do organisms get nitrogen into their bodies?
What is by eating plants containing nitrates?
Which cycle is shown in this picture?
What is the oxygen cycle?
What is a location in which atoms of an element are held for a long period of time?
What is a reservoir?
How can the oxygen in organic material become part of rocks?
What is sedimentation?
Which of the following does not contain carbon in some form? Diamonds, Water molecules, graphite, or coal?
What are water molecules?
When living things die what happens to the ammonia in their bodies?
What is it returns to the ground?
What is the carbon cycle?
What are the four reservoirs that contain all of the three topic elements?
What is the biosphere, atmosphere, hydrosphere, and lithosphere?
How is oxygen released from sediment?
What is weathering?
Three types of carbon that exist in the Earth reservoir.
What is coal, fossil fuels, and limestone?
What is the process in which bacteria in soil change the nitrogen gas into ammonia?
What is nitrogen fixation?
What two cycles go through photosynthesis as a part of their cycle?
What is the carbon and oxygen cycle?
Energy from the sun.
What is solar energy?
Photosynthesis is the driving force for what?
What is making oxygen available for life?
Two types of carbon that exist in the ocean reservoir.
What is carbon dioxide and carbonate ion?
Without nitrogen in our bodies we would not be able to form these, which are made of amino acids and carry out many of the functions that allow us humans to survive.
What are proteins?
What is the nitrogen cycle?
This converts ammonia into nitrates.
What is bacteria?
Being used by living organisms or being released back into the atmosphere are two ways that what kind of oxygen can be released from water?
What is dissolved oxygen?
The two sources of energy that fuel the carbon cycle.
What is solar energy and Earth's internal energy?
What is it called when nitrates and ammonia are converted back into nitrogen gas by bacteria?
What is denitrification?
Denitrification is part of what cycle?
What is the nitrogen cycle?
Nitrogen is vital to form these, which are unique in everyone and are formed of nucleotide bases.
What is DNA?