High mass stars are far more massive than the sun, and therefore have a much larger gravitational impact. A star of 100 solar masses (100x larger than the sun) has a much shorter life than that of the sun because the forces that cause the star to expand and "burn" have to work harder to overcome the much larger gradational impact. While the sun has a life span of approximately 8 billion years; the life of a red giant of 100 solar masses would be at best a few hundred million years because gravity will overcome the counteracting force of fusion. (resulting in a supernova, black hole, white dwarf, or other astronomical anomaly.)
Answer:
B.
Moist winds are forced upward by high landforms.
Explanation:
Soil fertility is lowered by
agriculture. It lowers fertility by removing soil nutrients incorporated
in the harvested crops. Cultivation, especially with heavy machinery
... This is where you will find your answer in this page just read it. Soil Fertility and ConservationSoil fertility---the ability to support plant. It is not enough to describe the soil as a country's greatest source of wealth; it is more ... to plant growth and development and are a good index of soil fertility. ... on steeper and steeper slopes lowered soil productivity - both in the hills and in ...
