There is no skeleton, so no fossil. <span />
Between 1931 and 1940 a ton of soil blew out of the central and southern great. It was a period of severe dust storms that greatly damaged the ecology and agriculture during the 1930s.
The best answer would be A. C<span>lear, distinct horizons with organic matter and mineral nutrients is a characteristic in a land that is to be used for farming. A healthy soil is an essential when planting crops thus it should have ample amount of organic matter and nutrients.</span>
Answer:
The answer is abiotic factors
