According to your text all of the following are warning signs of good health

Idk why don’t you pay attention ok class

I’m going to guess these are the choices: a) recreational skiing developed in the mid-19th century b) it was originally invented as a way of getting from place to place in snowy regions c) downhill skiing is currently the only common form of the sport d) it mostly evolved from snowshoeing- if that’s the cases then the answer would be c) downhill skiing is currently the only common form of the sport

"air pollution" is the correct answer i believe

Cells are the smallest. bones, muscles, and tendons are all made up of different type of cells.hope my answer you : )