Sunday, 19 June 2011

India : Climate, Vegetation and Wildlife : Lesson 8. NCERT Class VI (6th) Geography - Social Studies (The Earth : Our Habitat)

Exercises - Solution : Questions and Answers.
1.Question. Answer the following questions briefly.
(a) Which winds bring rainfall in India? Why is it so important?
Answer. Monsoon winds bring rainfall is in India. these winds are very important because the rainfall is necessary for crops and agricultural activities in India.

 (b) Name the different season in India?
Answer.   Broadly four major   season are recognised in India.
             (a) Cold weather season --  Winter December to February.
             (b) Hot weather season --  Summer from March to May.
             (c) South west monsoon Season (Rainy) -- from June to September.
             (d) Season of retreating monsoon --from October and November.

(c) What is natural vegetation?Answer. The plant community which has been left undisturbed over a long period of time. They grow on their own, without interference from human beings. They adjust to climatic and soil conditions.

(d) Name different types of  vegetation found in India.

Answer. Vegetation found in India can be divided into five types.
(a) Tropical Evergreen forest.
(b) Tropical Deciduous forest.
(c) Thorny bushes                   
(d)  Mountain vegetation.
(e) Mangrove forest.

(e) What is the difference between evergreen forest and deciduous forest?
Evergreen forest : They occur in areas  where the rainfall is very heavy. they are so dense that sunlight does not reach the ground.  Many species of trees are found, which shed their leaves at different times of the year. They always appear green and so are called evergreen forest. Important trees are found are Mahogany, Ebony, Rosewood. They are found in Andaman and Nicobar Islands, parts of north-eastern states and narrow strip of western slope of Western Ghats.

Tropical deciduous forest: These forests deciduous forest are also called monsoon forest. They are less dense. They shed their leaves at a particular time of the year. Important trees are Sal, Teak, Peepal, Neem and Shisham. They are found  in Madhya Pardesh, Bihar, Jharkhand, Chattisgarh, Orissa and in parts of Maharashtra.

(f)  What is the Tropic rain forest also called evergreen forest?
Answer. Many species of trees are found in tropical rain fores, which shed their leaves at different time of the year. The forest thus always appear green and is called evergreen forest.

2.Question.tick the correct answer.
(a) The world's highest rainfall occur in
(i) Mumbai.  (ii) Asansol.  (iii) Mawsynram.
Answer. (iii) Mawsynram.

(b) Mangrove forests can thrive in
(i) Saline water. (ii) Fresh water. (iii) Polluted water.
Answer.  (i) Saline water.

(c) Mahogany and rosewood trees are found in.
(i) Mangrove forests. (ii) Tropical deciduous forest.  (iii) Tropical evergreen forest.
Answer.  (iii) Tropical evergreen forest.

(d) Wild goat and snow leopards are found in
(i) Himalyan.  (ii) peninsular region. (iii) Gir forests.
Answer. (i) Himalyan. 

(e) During the south west monsoon period the moisture laden winds blow from.
(i) Land to sea. (ii) Sea to land.  (iii) Plateaus to plains.
Answer.  (ii) Sea to land.

3.Question. Fill in the blanks.
(a) Hot and dry wind known as  loo blow during the day in the summer.
(b) The states of Andhra Pradesh and Tamil Nadu receive a great amount of rainfall during the season of retreating monsoon.(c) Gir forest in Gujarat is the home of lions.
(d) Sundari is well known species of mangrove forests.
(e) Tropical deciduous forest are also called monsoon forest.                                           
India : Climate, Vegetation and Wildlife : Lesson 8. :  NCERT Class VI (6th)  Geography Social Studies Exercises Questions & Answers

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