The work sheet's answer is all of the above (if you are doing the worksheet)
Answer:
Energy does not cycle the way nutrients and atoms do. Energy enters the ecosystem from the Sun and exits after the organisms have taken as much as they need. Organisms release energy back into the biosphere as heat.
They are all layers of the earth
Answer:
Mildew thrives in damp, wet places like basements, attics and closed closets -- so strive to keep clothing as clean and dry as possible at all times. Clothing with grease or soiled spots encourages mildew growth, so don't leave dirty clothes on the floor or in the washing machine.
Explanation: