How has human use of trees had both a positive and negative impact?

While the massive deforestation has led to many building opportunities and a large expansion of civilization, it greatly damages the environment and the plants that provide oxygen for us. This can have a negative impact on the air we breath in the future. It also can push many animals to extinction, because a great majority of wildlife need trees to survive and make their homes in.

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prothallium

explanation:

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.