Add this word to learn about a certain words etymology

The type of cloud shown here may produce heavy rainfall. this type of cloud most likely occurs in an area of the sub-saharan that is a) often dry. b) often wet. eliminate c) very windy. d) usually cool.

Historical vs today's presidents (compare)

Give an example of a situation in which an individual's pursuit of economic self-interest may not benefit but instead harm the rest of society