Question

question 1 of 10
which three chemical elements are recombined as plants carry out photosynthesis?
a. potassium
b. hydrogen
c. oxygen
d. carbon

Explanation:

During photosynthesis, plants use carbon dioxide ($CO_2$) and water ($H_2O$) to produce glucose ($C_6H_{12}O_6$) and oxygen ($O_2$). The elements involved in the recombination are carbon, hydrogen, and oxygen.

Answer:

B. Hydrogen, C. Oxygen, D. Carbon