What 2 civilizations were isolated and protected by their physical features? ​

Ancient China was isolated from other parts of the world due to its geography. With the Gobi Desert and the Taklamakan Desert to the North and West, the Himalayan mountains on the South and Pacific Ocean to the East, the country was protected from invasion.

Explanation:

taking a bath requires the most water out of the given options because it takes a significant amount of water in order to fill a bathtub.

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."