Question

The term petroleum means fill up 8 STD ​

Answer 1

Answer:

Introduction

We use various materials for our basic needs. Some of them are found in nature and some have been made by human efforts.

Natural resources

Definition

The sources which are obtained from nature are called natural resources.

Types of natural resources

1. Inexhaustible natural resources

These sources are present in unlimited quantity in nature and are not likely to be exhausted by human activities.

Examples: Sunlight, air, etc.

2. Exhaustible natural resources

The amount of these resources in nature is limited, they can be exhausted by human activities.

Examples: Forests, coal, petroleum. minerals, wild life, natural gas, etc.

Booster 1

Can sunlight get exhausted by human activities?

Explanation

Sunlight is an ultimate source of energy available free of cost. It cannot be exhausted by human activities as it is produced by a natural process of fusion inside the sun. Due to this nuclear fusion extremely large amount of energy is produced which comes in the form of sunlight.

Answer 2

Explanation:

mineral oil that is found under the ground or sea and is used to make petrol, plastic and other types of chemical substances

खनिज तेल जिससे पेट्रोल, प्‍लास्टिक और अन्‍य प्रकार के रासायनिक तत्‍व तैयार होते हैं; पेट्रोलियम