The correct answer is - biomass from the decomposing grasses.
The Midwest is a region known for its highly fertile soil. The reason for this is that the weathered bedrock combines with huge amounts of biomass. The biomass is almost entirely form the grasses. The grasses grow naturally in this region and they dominate the landscape. They grow and die out relatively quickly, as most of those grasses are one season grasses. They manage to create very large amounts of biomass every year, and also they decompose very quickly. The grasses also are high in nutrients, so once decomposed, they give the soil a lot of nutrients as well, which makes it very fertile and suitable for agriculture.
False!
Hydrosphere overlaps with other spheres.
Example. - When Plant (Biosphere) grows under water!!
Hope this helps!
Answer:
What does the crust look like?
The type of land form that most early cultures were attracted to was riverbeds. The correct option among all the options that are given in the question is option "D". It has been seen that the earliest civilizations of Harappa and Mohenjodaro were established near the Indus river. The riverbeds were fertile and good for irrigation.
