Explanation:
A witness would be someone that has experienced something at first hand, having saw something from a different perspective. An ally is someone who is acquainted with you, or someone you could trust. A witness cannot be an ally if you are against their side in some form or way. A witness can be an ally if it is your best friend or someone you trust to prove you innocent.
Basically, a witness is a neutral term that describes someone that saw something. While an ally refers to mutually acceptable.
Explanation:
If you like to listen to music while writing, choose music without words or ambient noise, for example, the sound of water. Almost every study that I looked at found that music with lyrics hindered concentration and productivity. However, one study showed that low-level ambient noise can improve creativity.
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 />
Chicago........................