give definitions of the following.
1.biosphere
2.natural resources
3.Humus
4. Fossils fuels
Answers
Answer:
biosphere
the regions of the surface and atmosphere of the earth or another planet occupied by living organisms.
natural resources are materials or substances occurring in nature which can be exploited for economic gain.
humus is the organic component of soil, formed by the decomposition of leaves and other plant material by soil microorganisms.
fossil fuel is a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms.
Answer:
1) The biosphere is defined as the area of the planet where organisms live, including the ground and the air. An example of the biosphere is where live occurs on, above and below the surface of Earth.
2) A naturally occurring source of wealth, as land or water. natural resources, the natural wealth of a country, consisting of land, forests, mineral deposits, water, etc.
3) Humus is partially decayed organic matter. It makes the soil porous, thereby, increasing its air and water holding capacity. It is rich in nutrients that promote plant growth. Being black, it absorbs heat to warm up the soil.
4) Fossil fuels are made from decomposing plants and animals. These fuels are found in the Earth's crust and contain carbon and hydrogen, which can be burned for energy. Coal, oil, and natural gas are examples of fossil fuels.
Explanation:
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