Butter and oil are examples of food composed of what?

The answer is lipids. Lipids are organic macromolecules that comprise things like fat and waxes. Butter and oil fall into this category, and are thus made of lipids (although butter is a solid made of lipids and oil is a liquid made of lipids). 

Read the sentences below in 1962, i tried to enroll as the first black student at the university of mississippi. the governor of mississippi blocked my entrance which best describes the verbs used in the sentences? o they are past tense verbs, which are often used in narrative essays o they are past tense verbs, which are not often used in narrative essays. o they are future tense verbs, which are often used in narrative essays o they are future tense verbs, which are not often used in narrative essays.