Okay i just want help

soo o pls dont delete this

ppl talk to meh

Earth's atmosphere is unique among the planets and is able to support life because it contains a large amount of a) oxygen b) helium c) methane d) carbon dioxide

When your working with the passage-based reading questions on the psat do all of the following except. a)make sure you read each question throughly. b) try to answer each question before you look at the answers. c) plan to spend most of your time reading the passage. d) make sure your answer choice is the most correct number me

Which is these sentences can be deleted from the first paragraph sentence 4 sentence 2 sentence 5 sentence 3