General Instruction:
All Questions are Compulsory.
Question No. 1 to 4 carry one mark each.
Question No. 5 to 10 carry three marks each.
Question No. 11 and 12 carry 5 marks each.
- How many bird species found in India?
- Which is the Largest Mammal on the land?
- In which year Wildlife Protection Act was passed in India?
- How many Biosphere reserves have been set up in India?
- What is bio-diversity?
- What do you know about migratory birds?
- How has the temperature influence the vegetation cover of India?
- How has the photoperiod influence the vegetation cover of India?
- How has the precipitation influence the vegetation cover of India?
- Which are the most widespread forests of India? Mention any two characteristic features of these forests.
- Can you name the forest which is found in the areas of Western Ghats and Island Groups of India? And write their any four features.
CBSE TEST PAPER-02
Class –IX Social Science (Natural Vegetation and Wild Life)
[ANSWERS]
1) About 1200 species of birds are found in India
2) Elephant is the Largest Mammal on the land.
3) Wildlife Protection Act was passed in1972.
4) Fourteen Biosphere Reserves have been set up in India.
5) a) Biodiversity is the variation of life forms in an ecosystem biome on the entire earth.
b) The biodiversity found on the earth consists of millions of different species.
c) It is some total of all the living beings living on the earth.
6) a) Some of the wetlands of India are popular with migratory birds.
b) During winters, birds, such as Siberian Crane come in large numbers.
c) One such place favourable with birds is the Rann of Kuchchh.
d) At a place where the desert merges with the sea, flamingos with their brilliant, pink
plumage, come in thousands to build nest mounds from the salty mud and raise their
young ones.
7) a) The character and extent of vegetation are determined by the temperature and rainfall of
the place.
b) Optimal temperature as compared to extreme favors growth of vegetation.
c) The fall in the temperature affects the types of vegetation and its growth and changes
it from tropical to subtropical temperature and alpine vegetation.
8) a) The variation in the duration of sunlight at the different places is due to differences in
latitude, altitude, seasons, and duration of the day.
b) Due to the longer duration of sunlight, trees grow faster in summer.
c) more amount of sunlight also invites plenty of rainfall.
9) a) In India most of the entire rainfall is brought in by the advancing southwest monsoon and retreating northeast monsoons.
b) Areas of heavy rainfall have dense vegetation as compared to areas of less rainfall.
c) The tropical evergreen forests are found in areas where rainfall is more than 200 cm annually.
d) In regions of India with less than 70 cm of rainfall the natural vegetation consists of thorny trees and bushes.
10) Tropical deciduous forests are the most widespread forests in India.
a) Tropical deciduous forests are the most widespread forests in India.
b) They are also called the monsoon forests.
c) They receive rainfall between 200 cm and 70 cm.
d) Trees shed their leaves for about six to eight weeks in dry summer.
e) These forests are further sub-divided into moist and dry deciduous depending on the availability of water.
f) These forests are to be found in the eastern part of the country, northeastern states and on the foothills of Himalayas, Jharkhand, and west Odisha and Chhattisgarh and on the eastern slope of the Western Ghats
11) Tropical Rain Forests are found in the Western Ghats and the Island Groups of India. These are also found in the upper parts of Assam and Tamil Nadu. Following are the feature of these forests
a) The areas having more than 200cm of rainfall with a short dry season are the most suitable for such forests.
b) The trees reach great heights up to 60 meters or even above. The area has luxuriant vegetation including trees of all kinds of shrubs and creepers giving it a multi-layered structure as the region remains warm and wet throughout the year.
c) These trees appear green all the year-round as there is no definite time to shed their leaves.
d) Ebony, mahogany, rosewood, rubber, and cinchona are important commercial trees in this forest.
