Reltable ?

In order to have plenty of time to answer all required essay questions, a student should a. write as many essays as quickly as possible, then go back and revise each one c. decide which questions are more difficult or will take longer, then answer the easy questions first b. spend equal amounts of time on each question to ensure each questions gets the same amount of attention d. none of these select the best answer from the choices provided a b c d

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

How do astronomers measure the amount of dark matter in the universe