Match each item with the process that provides its energy. Hydropower
Water cycle
Sun
?
Photosynthesis
Fossil fuels
?
Nuclear fusion
Plants
?
Plant life decay

An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen

Acommon kind of mechanical weathering is called

All organisms contribute some water to the water cycle by conducting