(a) What are fossil fuels? Give three examples of fossil fuels.
(b) Describe how fossil fuels were formed.
(c) Explain how, sun is considered to be the ultimate source of fossil fuels.
(d) Which fossil fuels were formed by the buried remains of small plants and animals?
(e) Which fossil fuel was formed by the buried remains of large land plants?
(a) What are fossil fuels? Give three examples of fossil fuels.
(b) Describe how fossil fuels were formed.
(c) Explain how, sun is considered to be the ultimate source of fossil fuels.
(d) Which fossil fuels were formed by the buried remains of small plants and animals?
(e) Which fossil fuel was formed by the buried remains of large land plants?
a) A natural fuel such as coal or gas, formed in the geological past from the remains of living organisms are called fossil fuels. Three examples- Coal,petroleum, natural gas.
b) Fossil fuel is a general term for buried combustible geologic deposits of organic materials, formed from decayed plants and animals that have been converted to crude oil, coal, natural gas, or heavy oils by exposure to heat and pressure in the earth's crust over hundreds of millions of years.
c) Plants utilise sunlight via photosynthesis and these plants are eaten by herbivore, which are further eaten by carnivore and omnivore. All when die; decay and decompose under the high pressure and temprature to form fossil fuels. So, its basically the sun's energy that sustains this whole cycle.
d) coal, petroleum, natural gas
e) natural gas, coal, petroleum
a) A natural fuel such as coal or gas, formed in the geological past from the remains of living organisms are called fossil fuels. Three examples- Coal,petroleum, natural gas.
b) Fossil fuel is a general term for buried combustible geologic deposits of organic materials, formed from decayed plants and animals that have been converted to crude oil, coal, natural gas, or heavy oils by exposure to heat and pressure in the earth's crust over hundreds of millions of years.
c) Plants utilise sunlight via photosynthesis and these plants are eaten by herbivore, which are further eaten by carnivore and omnivore. All when die; decay and decompose under the high pressure and temprature to form fossil fuels. So, its basically the sun's energy that sustains this whole cycle.
d) coal, petroleum, natural gas
e) natural gas, coal, petroleum
