How do most primary producers make their own food?
select one:
a. by breaking down remains to make carbon dioxide
b. by changing water into carbon dioxide
c. by using light energy to make carbohydrates
d. by using chemical energy to make carbohydrates

Most primary producers make their own food c. by using light energy to make carbohydrates. Primary producers are mainly plants. In the process of photosynthesis, plants use light energy to convert carbon dioxide and water into glucose (a carbohydrate) and oxygen.

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