Advertisements
Advertisements
प्रश्न
Fossil fuels are ______, ______ and ______.
Advertisements
उत्तर
Fossil fuels are coal, petroleum, and natural gas.
Explanation:
These were formed from the dead remains of living organisms (fossils), so they are all known as fossil fuels. It requires millions of years to convert dead organisms into these fuels, but these known reserves will last only a few hundred years. Burning these fuels is a significant cause of air pollution, and their use is also linked to global warming. Therefore, it is necessary that we use these fuels only when necessary.
APPEARS IN
संबंधित प्रश्न
Explain why fossil fuels are exhaustible natural resources.
What are the different types of coal?
Anthracite is known as the highest-grade coal. Give reason.
Which substance is formed by the carbonisation of dead vegetation?
When heated in air, coal burns and produces mainly ______ gas.
Write True/False against the following statement.
Under high temperature and pressure, dead plants get slowly converted to coal.
Write the characteristics and some important uses of coal.
______ is used to make face packs and cosmetics.
Activated carbon, used in filters for water and air purification and in ______ machines is obtained from coal.
Coke is used in the preparation of dyes, explosives, paints synthetic fibers, and pesticides.
