class 8 geography chapter 4 natural resources.pdf

All questions and answers in details

1. Class –8
Subject –Geography .
Chapter –4.
A.Choose the correct answer and fill in the
blanks:-
1.(b) Campos
2.(c) Patagonia
3.(a) Rosewood
4.(d) Australia
5.(a) Mediterranean

2. B. Match the columns :-
1.Jaguar —USA.
2.Ostrich —Brazil
3.Bison —Botswana
4.Wolf —Russia
5.Wallby —Australia

3. C. State whether true or false. If false, correct
the statement :-
1.False -Plants and animals adapt
themselves to their habitat.
2.False –Coniferous forests yield softwood .
3.False –Trees in the temperate deciduous
forests.
4.True
5.True

4. D. Fill in the blanks :-
1.Biome
2.Coniferous forest
3.Veld
4.Rhea
5.Tundra

5. E. Answer the following questions in 10-20
words :-
1.The groups of plants which have
developed in an area without human
interference, are called natural vegetation.
2.These forests are well grown in the areas
near the equator and close to the tropics.
Mainly they are found in Amazon Basin ,
Zaire basin, Vietnam, Indonesia, etc.
3.Coniferous forests have tall evergreen
trees with valuable softwood and they are
ideal for lumbering.

6. 4. Difference between evergreen and
deciduous forest is that the trees in an
evergreen forest do not shed their leaves
during a particular season whereas the trees in
deciduous forest shed their leaves during the
dry season.
5. A number of species have become
endangered and some have already become
extinct. Large scale deforestation has robbed
the wildlife of their natrul habitat. This has also
led to an dwindling in their numbers .

7. F. Answer the following questions in 50-70
words :-
1.These are found in the northern
hemisphere between 50 degree to 70
degree N latitude specially in Southern
Canada , Russia , and Sweden.
Pine, fir, spruce, larch,
cedar are the types of trees found here.

8. 2. Tropical grasslands :-
Areas –These grasslands are found in Africa,
Brazilian highlands, nothern Australia.
Natural vegetation :-Tall and thick scattered trees
are the main vegetation of these grasslands
Temperate grasslands :-
Areas –These grasslands are found in interiors of
continents in the mid –latitudes.
Natrul vegetation –These areas lack in y’all trees.
But, they have healthy, green and nutritious grass
in fact, they can be termed as the sea of grass.

9. 3.Desert vegetation is also known as
xerophytes , that means the vegetation
and adapt themselves to the hot and dry
climate. Thorny bushes , Cacti, date Palm,
etc. are the main shrubs of these regions.
4.Forest are an important natural resource.
They are useful to us in number of ways :-
They provide us with timber and a host of
other products like lac, resins, gums,
medicinal herbs, leaves, honey, etc.

10. Forests helps in maintaining the ecological
balance, by absorbing carbon dioxide and
releasing oxygen.
They cause rainfall and prevent floods and
soil erosion.
They also provide natural nabitat to various
species of wildlife .

11. G. Answer the following questions in 80-100
word :-
1.some important measures of the forest
conservation are :-
Reckless deforestation should be checked.
The practice of shifting cultivation among
tribal people should be stopped as forests
are cleared for cultivation.
Forest fires which cause a lot of damage to
forests should be prevented.

12. Unplanned or unauthorised urban growth
should be checked .
Forested areas should not be converted into
farmlands
2.Following steps are being taken to protect
the wildlife:-
Several biosphere reserves are established
to preserve the genetic diversity of the wild
animals.

13. National parks, Wildlife sanctuaries are
made to protect wildlife.
Creeks, lakes and wetlands should be
conserved.
Animal hunting should be prohibited. To
meet this purpose, several laws have passed
against the hunting of animals and birds .
At regional and community level some
awareness programs should be
encouraged. Social Forestry and Van
Mahotsav are the examples of such
awareness programmes .