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.
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A large portion of our energy originates from consuming fossil fuels , consuming non-renewable energy sources dirties the air by putting all ash of harmful gases in it and also ozone harming substances which influence the atmosphere.
Conserving energy can anticipate things like synthetic compounds going into the air from control plants, or on the off chance that we drive less then we annihilate the air less in light of less CO2 outflows. Conserving energy additionally forestalls things like oil slicks into the sea.
Conserving energy can help with diminishing air, water, and land contamination in light of the diverse options we have for energy. We have sun powered power energy that is a sustainable source. Sun based power vitality doesn't contaminate the air that we inhale or discharge any ozone harming substances while creating power. You likewise have tidal energy that believers waves into clean, contamination free power. This shields the water from being dirtied.
