Social Science 1 Marks Each

As the Tropical Rainforests remain green throughout the year these are also called 'Evergreen Forests'.

Catechu is available from kher tree.

Leaf plates-bowls are prepared from khakhra leaves and bidi from timru leaves.

Medicines like amla. baheda. harde. ashwagandha, sarpagandha, cinchona, garmalo, shankhavali, saragavo, etc. are available from the forests in India.

Products like lac. resin. gum. rubber honey, cane, etc. are obtained from the forests in India.

Paper, rayon, baskets, smaller baskets. toys, mats and handicrafts are prepared from bamboo.

Fragrant oil and cosmetics are prepared from sandalwood.

Turpentine is prepared out of the pulp of chid tree.

The wood of sundari tree is useful to build boats.

Pine, saal and sesame trees give timber of high quality.

The main vegetation in the Tidal Forests are sundari and cher trees.

The Tidal Forests are located in the river deltas along the seacoast in India.

Silver fir, juniper, birch, etc. trees are found in Alpine Vegetation Region.

Alpine Vegetation is found in the mountainous regions higher than 3600 metres in Himalayas.

Pine, devdar, silver fir, spruce, etc. trees are found in Coniferous Forests.

Coniferous Forests are located on the southern slopes of Himalayas and in the southern and north-eastern highlands.

Oak and chestnut trees are found in Temperate Forests.

The Temperate Forests are located in north-eastern mountainous region. West Bengal and in the mountainous region of Uttarakhand in India.

The main characteristics of the Tropical Desert Vegetation and scrubs is that their roots are long, deep and are spread all around and the leaves are smaller.

Date-palm, acacia, jujube, many variety of cactus, khijdo, etc. trees are found in Tropical Desert Forests.

The Tropical Desert Forests are found in the regions receiving less than 70 cm rainfall in north-western area. Gujarat. Rajasthan, Madhya Pradesh, Uttar Pradesh, etc.

The main characteristics of the Tropical Deciduous Forests is that the trees here shed their leaves for 6 to 8 weeks during autumn season.

Trees like pine, saal, sesame, sandal. wood, kher, bamboo, etc. are found in Tropical Deciduous or Monsoon Forests in India.

The Tropical Deciduous Forests are located in north-eastern states, Himalayan foothills, Jharkhand, Western Odisha, Chhattisgarh, Vindhya and Satpuda ranges and eastern slopes of Western Ghats which receive rainfall between 70 to 200 em in India.

The main trees in Tropical Rainforests are ebony, mahogany, rosewood and rubber.

The Tropical Rainforests are located in the areas of heavy rainfall in the Western Ghats. Lakshadweep. Andaman-Nicobar Islands, higher regions in Assam and coastal Tamil Nadu areas where the rainfall exceeds 200 cm.

. There are mainly five types of forests in India: (1) Tropical Rainforests, (2) Tropical Deciduous Forests, (3) Tropical Desert Vegetation, (4) Temperate Forests and Grassland Regions and (5) Tidal (Mangrove) Forests.

Similar vegetation is found generally in the regions of Identical climates. Such a region or regions which have an environmental similarity are called 'natural vegetation regions'.

About 15.000 flowering plants grow in India. They form about 6% of the world.

There are about 5000 types of trees in India. About 450 types of trees among them are useful commercially.

The diversity in natural vegetation in India is created due to these factors: (1) Physiography, (2) Soil. (3) Temperature. (4) Insolation, (5) Amount of rain and (6) Humidity.

The vegetation which grows and develops without the help of man is called 'natural vegetation'.

A large group of trees and other vegetation spread over a vast area is called 'forest'.

India has a diversified physiography such mountains, plateaus, plains, deserts, etc.

Government of India wants to protect and conserve the forests.

tropical deciduous forests shed their leaves according to the season.

tropical rainforests remain green throughout the year.

It is a group of trees and those trees which grow in natural conditions without human help are called forests.

Coniferous means the trees of the forests have conical shape. Their branches lean towards the surface so that the snow would easily slide down towards the land. Tree leaves are long. pointed and sticky which can conserve humidity for a long time.

Mangroves means Tidal Forests. Mangroves forests are located in the delta regions of rivers along the coast in India. These forests are found along Gujarat coast and in the marshy lands along the Bay of Bengal coast.

It is a type of a Tropical Forests. The trees of this forests shed their leaves for 6 to 8 weeks during autumn. So, these forests are also called 'Monsoon Forests'.

Forest

Amla

Arjun Sadad

Sandalwood

Turpentine

Boats

Sundari and cher

Tidal (Mangrove) forests

Evergreen forests