Which of the following is true of environmental changes?
A.They cannot be caused by human activity.
B.They may affect several populations in an ecosystem.
C.They affect food chains, but not food webs.
D.They have no effect on living organisms in an ecosystem.

Question

Which of the following is true of environmental changes? 
A.They cannot be caused by human activity.
B.They may affect several populations in an ecosystem.
C.They affect food chains, but not food webs.
D.They have no effect on living organisms in an ecosystem.

dumbsearch2 · Answer

B.They may affect several populations in an ecosystem.
Click "Best Response" if I helped

anonymous · Answer

um can you help me with another question this stuff isn't what i do best xD @dumbsearch2

dumbsearch2 · Answer

Sure post another question

anonymous · Answer

@dumbsearch2 You are not "helping" people, you are helping them cheat.

dumbsearch2 · Answer

@opigeode I apologize, that was 11 months and I would not have done the same thing now as I had done then.

On another note- why are you checking out my posts from 11 months ago? Lol, either you were trying to cheat yourself [or] you were stalking my history. Probably the first one.

anonymous · Answer

I stumbled upon it. I didn't cheat at all. I was linked here by a friend who was answering my question.

anonymous · Answer

b

ayabaya2002 · Answer

It's B