What does renewable resources mean?
a. means that the resource can be renewed by growth or by reproduction
b. means that resource can be renewed by replacing it with another resource
c. means that the resource can not be renewed
d. means that the resource can be renewed by recycling

The following image is of a diatom. it lives in water and gets food from photosynthesis. it is encased in a hard shell made of something similar to glass or sand . a diatom is a(n) because it has a) multi-celled organism; specialized parts. b) vertebrate; a skeleton. c) insect; an exoskeleton. d) single-called organism; only one cell.

The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)

The climate on the leeward side of a mountain differs from that on the windward side mostly in