In the product 6O2, what does the coefficient mean? Answers:
There are 12 molecules of O2,
There are 8 molecules of O2,
There are 6 molecules of O2.
There are 2 molecules of O2.

Conservation efforts have been effective in "increasing the number of endangered species, reducing all the negative impacts of human activity, and preserving wildlife habitats".hope my answer has you : ) 

Are there any options that could alot..

You can find the answer from the answers.com

Ithink ur answer would be c hope u have a good day: )