I think its corn because of the key below ?
Answer:
5A: Northwest Region: Rocky Mountains
2B: West Region: Great Basin Desert
4C: South West Region: Grand Canyon
3D: Midwest Region: Great Plains
6E: Southeast Region: Everglades
1F: Mid-Atlantic Region: Many bays and good harbors
7G: Northeast Region: Rocky coastline and small coastal islands
Explanation:
Answer:
Chernozem is a very fertile soil that produces high agricultural yields and offers excellent agronomic conditions for the production of crops, especially cereals and oilseeds. It is rich in phosphoric acids, phosphorus and
Petroleum is a very important part of our day to day life now. We use it almost every day and it has helped emerge the world of vehicles.
<h3>Remains of sea organism</h3>
The remains of ancient marine organisms and sea organisms are used to extract crude oil or petroleum which serve as a fuel for vehicles. These organisms are ancient marine plants, algae and bacteria.
Therefore it can be concluded that the type of fossil fuel in which the remains of sea organisms are converted to is petroleum or crude oil.
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Sedimentary rock can be transformed into B. Metamorphic rock through heat and pressure.