What is the difference between a noun, subject, and adjective?

FIRST ANSWER

Nouns are things, adjectives describe things, verbs are what the things do, and adverbs are how they do it.

Explanation:

pleas give me brainliest if not that's fine :

the correct answer is c. he speculates on what might happen at given points in the future in a world without people. alan h. weisman is an american author, professor, and journalist. authors organize their information with a purpose. they present their ideas in an organized way. this is called text structure. weisman uses text structure so as to improve overall comprehension and to prove his points.

what was your story about? i remember this from my language arts class in flvs! i had ms. rosemeyer.