• By noor arora
• 27 Oct 2022

Deserts • Desert is an arid land with little or no vegetation. • Depending on the temperatures, deserts are of two types: → Hot deserts → Cold deserts The Hot Desert – Sahara • Sahara is the world’s largest desert. • It has

• By noor arora
• 27 Oct 2022

Grasslands • Definition: Grassland is a region where grasses form the dominant type of plant life. • Grasslands make up almost 25% of the total land surface. • Climate and soil influence the types of plants. • Types of Grasslands:  → Temperate grasslands:

• By noor arora
• 27 Oct 2022

Life in the Amazon Basin • The river Amazon flows through the tropical region lies very close to the equator; between 10°N and 10°S. → It is referred to as the equatorial region. • The place where a river flows

• By noor arora
• 27 Oct 2022

Settlements • Settlements are places where people build their homes.• Settlements can be of two types: → Temporary: Settlements which are occupied for a short time are called temporary settlements. Example: The people living in deep forests, hot and cold

• By noor arora
• 27 Oct 2022

Natural Vegetation • Natural Vegetation refers to the plant life of a region which grown naturally. • The type and thickness of natural vegetation varies from place to place because of the variation in these factors. • Natural Vegetation is classified into three broad categories: → Forests:

• By noor arora
• 27 Oct 2022

Water Cycle • Water is present in rivers, lakes, ocean etc. • The sun’s heat causes evaporation of water vapour. • When the water vapour cools down, it condenses and forms clouds. • From there it may fall on the

• By noor arora
• 27 Oct 2022

Atmosphere • A huge blanket of air that surrounds earth is called atmosphere. • It provides us the air we breathe and protects us from the harmful effects of the sun’s rays which is essential for our survival.Composition of the Atmosphere • Nitrogen and