a.
In soil erosion, the soil is carried away from by the wind or water from the top layer of the ground. Soil formation is making soil. It can be by the deposition of the soil from water or wind
I don't know a lot about volcanos, but I can help you with the formatting
Answer:
The moon is earths only permanent natural satellite
the moon always shows earth the same face
the sun and moon are not the exact size
the moon is 238,900 miles from earth
the moon is estimated to be about 4.6 billion years old
Answer:
This is how cells gene regulation occur.
Explanation:
Regulation of gene expression is very very important thing to maintain the normal levels of all body proteins according to our body"s requirement.
During positive gene regulation enzymes of various metabolic pathways of the target cell is being activated,thus supplying the cellular need of various metabolites and proteins.
During negative regulation various enzymes are turned off thus blocking the formation of metabolites or proteins not required by the cell.
The answer is D. the way organisms grow and develop
