Which of the following is not considered an environmental challenge, but is the cause of many of the world’s environmental issues?
a.

overpopulation
b.

water scarcity
c.

air pollution
d.

loss of biodiversity

i don't see how you want other people to do your work for you and it is like you are just handing your assignment to anybody else and having them deal with it instead of your self i thought this site was for asking questions and somebody could you on it not just handing your work to somebody else to deal with it just saying don't mean to be mean just proving a fact.

explanation:

there is no chart here so no one can answer this.