the answer is... hydrocarbons
In the carbon cycle, decomposers break down dead material from plants and other organisms and release carbon dioxide into the atmosphere, where it's available to plants for photosynthesis. ... After death, decomposition releases carbon into the air, soil and water.
Energy loss is demonstrated more clearly on an energy pyramid than on a food web.
Drinking water shortages? Water across the world isn't purified which without purification doesn't quench thirst.
A control group is different because it is not what is being tested. for example the control group would use sugar pills while the other group uses the pills being tested
