NCERT Solutions Class 7th Geography Social Science Chapter – 6 Natural Vegetation and Wildlife Question & Answer

Question 1. Answer the following questions briefly.

(a)Which are the two factors on which the growth of vegetation mostly depends?
?‍♂️Answer: 
(1)Two factors on which growth of vegetation mostly depends:
• Climate (Temperature and Moisture).
• Height
• Slope
• The thickness of the soil.
(Any two factors)

(b)Which are the three broad categories of natural vegetation?

?‍♂️Answer: Three broad categories of natural vegetation:
• Forests: Grow in regions of high temperature and rain.
• Grasslands: Grow in regions of moderate rainfall.
• Thorny shrubs and scrubs: Grow in dry regions.

(c)Name the two hardwood trees commonly found in tropical evergreen forest?

?‍♂️Answer: Two Hardwood Trees:
• Rosewood
• Ebony
• Mahogany (Any Two)

(d)In which part of the world is tropical deciduous forests found?

?‍♂️Answer: Tropical deciduous forest is found in the following parts of the world:
• Large parts of India.
• Northern Australia
• Central America
• Citrus fruits are cultivated in the Mediterranean climatic conditions.

(e)In which climatic conditions are citrus fruits cultivated?

?‍♂️Answer: Four uses of coniferous forests:
• Coniferous forests provide softwood.
• It is used in making pulp. The pulp is used in making paper and newsprint.
• The matchmaking industry gets softwood from coniferous forests.
• Softwood is also used in making package boxes.
• Seasonal grassland is found in the Savannah region of Africa. It gets dried up in the dry season.

(f)Mention the uses of coniferous forest.

?‍♂️Answer: Four uses of coniferous forests:

• • Coniferous forests provide softwood.
  • It is used in making pulp. The pulp is used in making paper and newsprint.
  • The matchmaking industry gets softwood from coniferous forests.
  • Softwood is also used in making package boxes.

(g)In which part of the world is seasonal grassland found?

?‍♂️Answer: Seasonal grassland is found in the Savannah region of Africa. It gets dried up in the dry season.

Question 2. Tick the correct answer.
(a) Mosses and Lichens are found in
(i) Desertic vegetation
(ii) Tropical vegetation
(iii) Tundra vegetation.

?‍♂️Answer: (a) – (iii)
(b) Thorny bushes are found in
(i) Hot and humid tropical climate
(ii) Hot and dry desertic climate
(iii) Cold polar climate.

?‍♂️Answer: (b) – (ii)
(c) In tropical evergreen forest, one of the common animals is
(i) Monkey
(ii) Giraffe
(iii) Camel.

?‍♂️Answer: (c) – (i)
(d) One important variety of coniferous forest is
(i) Rosewood
(ii) Pine
(iii) Teak.

?‍♂️Answer: (d) – (ii)
(e) Steppe grassland is found in
(i) S. Africa
(ii) Australia
(iii) Central Asia.
?‍♂️Answer: (e) – (iii).

Question 3. Match the following.

?‍♂️Answer:

Question 4. Give reasons:

The animals in the polar region have thick fur and thick skin.
Tropical deciduous trees shed their leaves in the dry season.
The type and thickness of vegetation changes from place to place.
?‍♂️Answer:

The animals in the polar region have thick fur and thick skin because of the following reasons:
Polar regions are very cold. .
Animals that do not have thick fur and thick skin cannot survive in these harsh and cold climates.;
They have to protect themselves from cold by thick fur and thick skin.

Tropical deciduous trees shed their leaves in the dry season because of the following reasons:
During the dry season, rainfall is scarce and water supply to plants and trees through their roots is reduced.
Transpiration occurs through leaves.
To reduce transpiration in dry season, trees shed their leaves.
The short supply of moisture through their roots keeps them alive during the dry season.

The type and thickness of vegetation changes from place to place because of the following reasons:
Climate (temperature and moisture)
Height from mean sea level – Slope
The thickness of the soil.
As these conditions vary from place to place, natural vegetation (types and thickness) also varies from place to place.

Question 5. Activity:
(a) Collect pictures and photographs of forests and grasslands of different parts of the world. Write one sentence below each picture.
(b) Make a collage of rainforest, grassland, and coniferous forests.
?‍♂️Answer: (a) Pictures and photographs of forests and grasslands of different parts of the world.1.These forests are found in the regions near the equator and close to the tropics. These regions are hot and receive heavy rainfall throughout the year. These trees do not shed their leaves altogether.

These forests are the monsoon forests found in the large part of India, northern Australia and in central America. Trees shed their leaves in dry season.

These forests are commonly found along the eastern margin of the continents and comprise both hard and softwood trees like oak, pine etc.

The grass can grow veiy tall, about 3 to 4 metres in height. Savannah grasslands of Africa are of this type.
(b) Students are suggested to do this activity themselves

Question 6. For Fun:
In the crossword table given below, some words are hidden. They are all about vegetation and wildlife and are to be found horizontally and vertically. Two have been worked out for you. Work in pairs with a friend

?‍♂️Answer: