Is water a raw material or is it a end product

If you have a difficult time knowing where your hand is without looking at it you may be having a problem with your what ?

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere