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Question 11 Mark
"Tropical forests are also called Evergreen Forests." Give reasons.
Answer
As the Tropical Rainforests remain green throughout the year these are also called 'Evergreen Forests'.
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Question 31 Mark
What is prepared from the leaves of khakhra and timru?
Answer
Leaf plates-bowls are prepared from khakhra leaves and bidi from timru leaves.
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Question 41 Mark
Which medicines are obtained from the forests in India?
Answer
Medicines like amla. baheda. harde. ashwagandha, sarpagandha, cinchona, garmalo, shankhavali, saragavo, etc. are available from the forests in India.
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Question 51 Mark
Which forest products are obtained from the forests in India?
Answer
Products like lac. resin. gum. rubber honey, cane, etc. are obtained from the forests in India.
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Question 61 Mark
What is prepared from bamboo?
Answer
Paper, rayon, baskets, smaller baskets. toys, mats and handicrafts are prepared from bamboo.
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Question 81 Mark
What is prepared out of the pulp of chid tree?
Answer
Turpentine is prepared out of the pulp of chid tree.
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Question 101 Mark
Which trees give timber of high quality?
Answer
Pine, saal and sesame trees give timber of high quality.
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Question 111 Mark
Which is the main vegetation of Tidal Forests?
Answer
The main vegetation in the Tidal Forests are sundari and cher trees.
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Question 121 Mark
Where are the Tidal Forests located in India?
Answer
The Tidal Forests are located in the river deltas along the seacoast in India.
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Question 131 Mark
Which trees are found in the region of Alpine Vegetation?
Answer
Silver fir, juniper, birch, etc. trees are found in Alpine Vegetation Region.
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Question 141 Mark
Where is the Alpine Vegetation found in India?
Answer
Alpine Vegetation is found in the mountainous regions higher than 3600 metres in Himalayas.
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Question 151 Mark
Which trees are found in Coniferous Forests?
Answer
Pine, devdar, silver fir, spruce, etc. trees are found in Coniferous Forests.
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Question 161 Mark
Where are the Coniferous Forests located in India?
Answer
Coniferous Forests are located on the southern slopes of Himalayas and in the southern and north-eastern highlands.
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Question 171 Mark
Which trees are found in Temperate Forests?
Answer
Oak and chestnut trees are found in Temperate Forests.
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Question 181 Mark
Where are the Temperate Forests located in India?
Answer
The Temperate Forests are located in north-eastern mountainous region. West Bengal and in the mountainous region of Uttarakhand in India.
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Question 191 Mark
Which is the main characteristics of the Tropical Desert Vegetation and scrubs?
Answer
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.
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Question 201 Mark
Which trees are found in Tropical Desert Forests?
Answer
Date-palm, acacia, jujube, many variety of cactus, khijdo, etc. trees are found in Tropical Desert Forests.
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Question 211 Mark
Where are the Tropical Desert Forests mostly found in India?
Answer
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.
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Question 221 Mark
Which is the main characteristics of the Tropical Deciduous Forests?
Answer
The main characteristics of the Tropical Deciduous Forests is that the trees here shed their leaves for 6 to 8 weeks during autumn season.
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Question 231 Mark
Which trees are found in Tropical Deciduous or Monsoon Forests of India?
Answer
Trees like pine, saal, sesame, sandal. wood, kher, bamboo, etc. are found in Tropical Deciduous or Monsoon Forests in India.
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Question 241 Mark
Where are the Tropical Deciduous Forests located in India?
Answer
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.
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Question 251 Mark
Which are the main trees in Tropical Rainforests?
Answer
The main trees in Tropical Rainforests are ebony, mahogany, rosewood and rubber.
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Question 261 Mark
Where are the Tropical Rainforests located in India?
Answer
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.
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Question 271 Mark
Which types of forests are found in India?
Answer
. 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.
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Question 281 Mark
What is called a natural vegetation region?
Answer
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'.
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Question 291 Mark
How many types of flowering plants are found in India? How much percentage of the world does it form?
Answer
About 15.000 flowering plants grow in India. They form about 6% of the world.
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Question 301 Mark
How many types of trees are found in India? How many of them are useful commercially?
Answer
There are about 5000 types of trees in India. About 450 types of trees among them are useful commercially.
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Question 311 Mark
Which factors create the diversity in natural vegetation in India?
Answer
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.
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Question 321 Mark
Which type of vegetation is called natural vegetation?
Answer
The vegetation which grows and develops without the help of man is called 'natural vegetation'.
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Question 331 Mark
What is a forest?
Answer
A large group of trees and other vegetation spread over a vast area is called 'forest'.
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Question 341 Mark
A large variation is seen in the natural vegetation of India because.......
Answer
India has a diversified physiography such mountains, plateaus, plains, deserts, etc.
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Question 351 Mark
Government of India has implemented National Forest Policy because.......
Answer
Government of India wants to protect and conserve the forests.
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Question 361 Mark
Tropical deciduous forests are called 'monsoon forests' because........
Answer
tropical deciduous forests shed their leaves according to the season.
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Question 371 Mark
Tropical forests are also called 'evergreen forests' because......
Answer
tropical rainforests remain green throughout the year.
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Question 381 Mark
Explain term : Forests
Answer
It is a group of trees and those trees which grow in natural conditions without human help are called forests.
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Question 391 Mark
Explain term : Coniferous
Answer
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.
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Question 401 Mark
Explain term : Mangroves
Answer
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.
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Question 411 Mark
Explain term : Deciduous
Answer
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'.
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Question 491 Mark
Which forests are located in the delta regions of rivers along the coast?
Answer
Tidal (Mangrove) forests
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