Most vitamins cannot be made by the body.
a. true
b. false

The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping

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

What do your cells need to live? a. carbon dioxide b. carbon c. air d. oxygen