The correct answer should be <span>The loss of plant species and habitats will devastate animals and hinder human progress.
He doesn't mention about displacement but it does decrease potential biological wealth. He mentions that animals and ecosystems will be devastated which will hinder us since we will not get the opportunity to examine new organisms that might hold solutions to our problems.</span><span />
The answer to this question is B, had been dancing
It’s passive in my view
Hope it helps
No they aren't proper to use in writing class they are considered slang. It would show your teacher that your not interested in sounding educated and proper.
Hope this helps!
