Natural Factors:
Ocean Currents, Distance of the Sea, Wind Directions, Topography, Your country's distance from the equator , Volcanic Eruptions, The sun, and especially humans.
The agriculturally important microorganisms come from bacteria, actinomycetes, blue green algae, fungi, including vesicular arbuscular mycorrhizae and viruses. They thrive in a variety of habitats including soil, living body systems anddecayed matter, marine, snow bound mountains and desert systems, along with water bodies.
The answer is C.
Layer C is the mantle of the earth and it is the layer immediately below the upper-most layer of the earth, the crust. The substances in the mantle are in the molten state due to the high temperature and the liquid form is called magma. Once a volcano erupts and the magma is released to the surface of the air, it is called lava.
