When rooka change form in the rock eyele, we see an example of the conservation of
A. volume
B. matter
c. density
D. area

Plz plz plz quick! 49 points for whoever which of the following statements about greenhouse effect is true? *life on earth is suffering because of greenhouse effect *the greenhouse effect is caused by human activity *all greenhouse gases are harmful *life on earth would not exist without the greenhouse effect

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

What does natural resource management aim at ?