What are the two main reactants of photosynthesis

Describe two recent or ongoing space missions.

Which of the following are the functions of the integumentary system? yadda-yadda, the 1st answer is the brainliest. : )

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers