Can someone help me I legit don’t understand this

Which of the following are false concerning microbes? a. microbes generate oxygen through photosynthesis.b. the primary role of microbes on the planet involves causing disease in animals and humans.c. microbes produce vitamins in the intestines.d. microbes play a role in breaking down waste and decomposing dead organisms.

Hedgerows have created a new ecosystem within britain’s a. farms b. cities c. forests d. industrial areas

Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.