Exercise - Question:
Que: Answer the following questions.
(i) Which are the two factors on which the growth of vegetation mostly depends?
(ii) Which are the three broad categories of natural vegetation?
(iii) Name the two hardwood trees commonly found in tropical evergreen forest.
(iv) In which part of the world are tropical deciduous forest found?
(v) In which climatic conditions are citrus fruits cultivated?
(vi) Mention the uses of coniferous forest.
(vii) In which part of the world is seasonal grassland found?
Ans:
(i) Tempreature and moisture.
(ii) (a) Forest, (b) grassland and (c) thorny shrubs scrubs.
(iii) Rosewood and ebony.
(iv) India, northen Australia and in central America.
(v) (a) Hot dry summers and (b) rainy mild winters.
(vi) (a) Wood is used to make pulp, which is useful for making paper and news print. (b) To make matchbox.
(c) To make packing box.
(d) Decorative pieces.
(vii) Seasonal grasslandare found in the mid-latitudinal zones and in the interior parts of the continents.
Que: Tick the correct answer.
(i) Mosses and Lichens are found in:
(a) Desertic Vegetation
(b) Tropical evergreen forest
(c) Tundra vegetation
(ii) Thorny bushes are found in:
(a) Hot and humid tropical climate
(b) Hot and dry desertic climate
(c) Cold polar climate
(iii) In tropical evergreen forest, one of the common animals is:
(a) Monkey
(b) Girraffe
(c) Camel
(iv) One important variety of coniferous forest is:
(a) Rosewood
(b) Pine
(c) Teak
(v) Steppe grassland is found in
(a) S. Africa
(b) Australia
(c) Central Asia
Ans:
(i) - (c)
(ii) - (b)
(iii) - (a)
(iv) - (b)
(v) - (c)
Que: Match the following.
(i) Walrus (a) Soft wood tree
(ii) Cedar (b) An animal of tropical deciduous forest
(iii) Olives (c) A polar animal
(iv) Elephants (d) Temperate grassland in Australia
(v) Campos (e) Thorny shrubs
(vi) Downs (f) A citrus fruit
(g) Tropical grassland of Brazil
Ans:
| Column I | Column II |
| (i) Walrus | (c) A polar animal |
| (ii) Cedar | (a) Soft wood tree |
| (iii) Olives | (f) Acitrus fruit |
| (iv) Elephant | (b) An animal of tropical decidous forest |
| (v) Campos | (g) A tropical grassland of brazil |
| (vi) Downs | (d) Tempreature grassland in Australia |
Que: Give reasons.
(i) The animals in polar region have thick fur and thick skin.
(ii) Tropical deciduous trees shed their leaves in the dry season.
(iii) The type and thickness of vegetation changes from place to place.
Ans:
(i) To protect themselves from the cold clamitic conditions.
(ii) To conserve water.
(iii) Because of the variation in tempreature, moisture, slope and thickness of soil.
