Check all that apply. The lab activities allowed for the modeling,
observation, and comparison of the factors that
affect erosion.
Higher velocity streas or rivers cause more
erosion.
Higher volume streams or rivers cause more
erosion.
Higher gradient streams or rivers cause more
erosion.

a neutral ph of 7 and normal organism temperature is needed for a certain enzyme to be effective.  

what would happen to the enzyme if the ph and/or temperature fluctuate greatly from the norm?  

a.the enzyme’s hydrogen bonds will break.  

b.the activation energy will increase.  

c.more product will be formed.

d.the ideal temperature and ph for the enzyme function will decrease.  

mountains can affect the climate of nearby lands. in some areas, mountains block rain, so that one side of a mountain range may be rainy and the other side may be a desert. much of airborne moisture falls as rain on the windward side of mountains.

explanation:

i am going to guess that it is co2.

i'd say that the moon rock is about 2.2 billion years old.