Advertisements
Advertisements
प्रश्न
How do minerals occur in sedimentary rocks?
उत्तर
Minerals occur in sedimentary rocks in the form of beds or layers. These rocks are formed by deposition, accumulation and concentration in a horizontal strata. The minerals in these rocks are formed by the process of precipitation or through chemical, physical and biological changes in sediments. While coal and iron ore are formed due to heat and pressure, gypsum, potash and salts are formed due to evaporation.
APPEARS IN
संबंधित प्रश्न
Classify energy resources into two categories. Give two examples of each category.
Mention one advantage of the use of natural gas over coal or petroleum
State one disadvantage of using coal as a source of power.
Give reason.
Environmental aspects must be carefully looked into before building huge dams.
Where does India stand in the production of coal?
Classify the coal fields in India. Name state for each classification.
Why petroleum is called mineral oil? Write its two uses.
The location of coal fields is an important factor in industrial development.
Name three important states which form the tertiary coal distribution chain.
Name the oldest and the largest coal field in India.
