Once heat from the sun penetrates the earth's atmosphere, the heat is circulated as warm air rises and cold air sinks. what is this process called?

Sheri likes to study in the school library, but it is usually full of chatting students. it's a great place to study because her friends can always drop by when they want to talk to her. sheri should seek a new study space with a. more light c. less distractions b. less people d. more access to a restroom select the best answer from the choices provided a b c d

General ways to reduce the risk of some action include

Identify one similarity between china and europe that explains their decisions on wether to explore or conquer lands around the indian ocean