Question

Possibility of occurrence of coal in an area, is determined by study of
A.Microfossils
B.Ecology
C.Economic botany
D.Mining content

Answer 1

Hint : We must know that the coal is being formed by the high pressure and heat acting for millions of years on dead plant matter.Coal is a hard rock which can be burned as a solid fossil fuel. It is mostly carbon but also contains hydrogen, sulphur, oxygen and nitrogen.

Complete step by step solution :
Microfossil study is the most common practice that is being employed to find about the coal occurrence.
Microfossils are generally in the size range of0.001mm to 1mm, which is not visible to our naked eye and for this reason; their study is done through an electron microscope.
The study of microfossils is used in various technologies and studies other than coal occurrences some of them include geological reconstruction of the then environment, and other than that to study about the biological structures of those mammals.
Now the reason why microfossils are so important for the coal occurrence is the fact that coal is called a fossil fuel for a reason. And the reason is that coal is nothing more than the fossilized remains of living organisms which was subjected to a very high temperature and pressure deep under the earth.
Coal is a black brownish colour sedimentary rock, which consists of a very high percentage of hydrocarbon and carbon with sulphur(S), oxygen (O), nitrogen (N), and hydrogen (H).
Paleobotany is the study and identification of plant remains from geological context and to use it to biologically reconstruct the past environment and to study about the plant evolution history.
Paleobotany is the main study that is being used in the coal occurrence by the industry.

Hence, we can conclude the microfossil is the correct answer.

Note : We must know that the coal is one of the most used non-renewable sources of energy which is extracted from earth. It takes millions of years for coal formation. Along with that coal is being used in many industries some of the most famous industries are electricity power plants, railways, Ships, etc.