Pls someone answer this question. will give brainliest. ps. there's space where it specifically made to ask about something below the question. don't be a dimwit and ask in the answer section

They maintain the physical and chemical integrity of those ecosystems. Plants prevent soil erosion and desertification. Plants provide the raw materials for food, clothing, medicines, construction and many other products that sustain our lives.

Tour answer will be number D

your answer would be a, maximum exploitation of resources.

the statements that apply here about binary star system are

"have stars that might appear to wobble"

"often have one star that is brighter than other"

a binary star is a star system consisting of two stars revolving around their common barycenter. systems of two or more stars are called multiple star systems.