What molecules are found in all or almost all organic compounds?
a. carbon and oxygen
c. carbon and nitrogen
b. hydrogen and oxygen
d. carbon and hydrogen .

Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature above 37 degrees celsius (98.6 degrees f)? describe what might happen if the temperature decreased by 10 degrees celsius.

What are some natural processes that represent physical and chemical changes?

What process decreases the salinity of ocean water? decreased precipitationdecreased melting of glaciersincreased evaporationincreased runoff from rivers