Test: Resources- 2 - Class 8 MCQ

The major energy sources are fossil fuels such as coal, petroleum and natural gases. They are an important source of energy for modern technology. Fossil fuels are used in industry, thermal plants, agricultural operations, automobiles etc.

Energy generated by using wind, tides, solar, geothermal heat, and nuclear energy are renewable and inexhaustible sources of energy.

Solar energy: Energy from the sun is called solar energy and it is the most abundant source of energy.

Wind energy: Energy generated by wind. India ranks fifth in wind energy generation. Energy obtained from radioactive elements is called nuclear energy. Name is so called because the nucleus of the atom releases energy by emitting radiation. Such atoms which release energy are called radioactive elements.

The history of colonization reveals that rich resources in colonies were the main attractions for the foreign invaders. It was primarily the higher level of technological development of the colonizing countries that helped them to exploit resources of other regions and establish their supremacy over the colonies.

For example: The teak plantation in South India had destroyed the habitat of several species during that time.

Explanation: Non-renewable resources are those that exist in finite quantities and cannot be replenished within a human timescale once they are depleted. They have a limited stock, which means there's only a certain amount available. Once used up, these resources cannot be quickly or easily replaced, leading to their eventual exhaustion.