std 8 science chapter 5 imp notes
Answers
Answer:
std 8 science chapter 5 imp notes
Explanation:
Natural Resources: The resources, that are obtained from nature are called natural resources, for example, air, water, soil and minerals.
Inexhaustible Natural Resources: The resources, that are present in unlimited quantity in nature,
and cannot be exhausted by human activities, for example, air, sunlight etc.
Exhaustible Natural Resources: The resources, that are present in limited quantity in nature, and can be exhausted by human activities, for example, coal, petroleum, minerals, forests etc.
Fossil: The remains of the part of plants or animals transformed over time, is called fossil.
Some exhaustible natural resources from the dead remains of living organisms are known as fossil fuels, for example, coal, petroleum and natural gas.