Scientists have hypothesized that oxygen began to build up in the earth's atmosphere after the development of living things with the ability to a. breathe air. b. form tissues. c. photosynthesize. d. reproduce sexually.

fabric is silk wool ext. paper isnt

explanation:

u cant make fabric out of paper cause paper comes from wood while fabric comes from animals

the sphincter muscles at the end of the digestive tract is the anus.

answer: i don't know

explanation:

you need to provide a picture, otherwise i can't tell you.

if you can provide one, i'd be more than happy to you with this!

the answer is c most of the fortnite players usually buy v bucks to get the battle pass and other cosmetics but some players who are referred to as "no skins" don't   buy skins and are usually noobs.

read more on -