The term used to describe the smallest amount of a fissionable substance needed to start a chain reaction is called a. electric force b. critical mass c. mass-energy

All state and federal officials are required to take an oath to support the constitution. select the best answer from the choices provided t f

The original term of was descriptive of lower-class people who performed manual labor.

Read the passage below. which of these statements describes the problem with including this passage as part of an explanatory essay? passage: the neolithic revolution changed everything for humans. before the n.r., you couldn't even plant food. i know you want to hear more, don't even deny it! o a. the tone is too dull and does not include a hook to keep the reader interested. o b. the tone is too objective and does not show the author's opinion. o c. the tone is too transitional and does not stay focused on one topic. o d. the tone is too informal and does not use appropriate vocabulary. surmit