EVENTS
CONVENT HIGH SCHOOL
13/08/2021 CLASS-10 SESSION2021-22(SLOT-1)
SOCIAL SCIENCE(GEOGRAPHY)
Chapter-1
RESOURCES AND DEVELOPMENT
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A. Multiple
choice questions:
(i) Which one of the following types of resources is iron ore?
a. Renewable
b. Biotic.
c. Flow
d. Non-renewable (√)
(ii)
Under which of the following type of resource can tidal energy be put?
a. Replenish able(√)
b. Abiotic
c. Human-made.
d. Non-recyclable
(iii)Which
one of the following is the main cause of land degradation in
Punjab?
a. Intense cultivation
b. Deforestation
c. Over irrigation
d. Overgrazing(√)
(iv)
In which one of the following states is the terrace cultivation practiced?
a. Punjab
b. Haryana
c. Plains of Uttar Pradesh
d. Uttarakhand(√)
(v)
In which one of the following states is the black soil found?
a. J & K
b. Gujarat(√)
c. Rajasthan
d. Jharkhand
B.
Answer the following questions in about 30 words:
(i) Name three states having black soil
and the crop which is mainly grown in it.
(i) The Black soils are
black in colour.
These are also known as regur soils.
This soil is typical of the Deccan trap (Basalt) region spread over northwest
Deccan Plateau. They cover the plateaus of Maharashtra, Saurashtra, Malwa,
Madhya Pradesh, and Chhattisgarh and extend in a south-east direction along the
Godavari and the Krishna valleys.
Black soil is ideal for growing cotton.
(ii) What type of soil is found in the
river deltas of the Eastern Coast? Give three main features of this type of
soil.
(ii) Alluvial soil is found in the eastern coastal
plan is particularly in the deltas of the Mahanadi, the Godavari, the Krishna
and the Kaveri rivers
Three main features of this type of soil are as follows :
The alluvial soil consists of
various proportions of sand, silt, and clay.
These soils are very fertile. Due to
its high fertility, regions of alluvial soils are intensively cultivated and
densely populated.
These soils contain an adequate
proportion of potash, phosphoric acid, and lime which are ideal for the growth
of sugarcane, paddy, wheat, and other cereal and pulse crops.
(iii)
What steps can be taken to control soil erosion in the hilly areas?
(iii) The soil erosion in the hilly areas can be controlled by taking steps as
mentioned below :
Contour ploughing: Ploughing along the contour lines can
decelerate the flow of water down the slopes. This is called contour ploughing.
Terrace cultivation: Steps can be cut out on the slopes making
terraces. Terrace cultivation restricts erosion.
Strip cropping: Large fields can be divided into strips.
Strips of grass are left to grow between the crops. This breaks up the force of
the wind. This is strip cropping.
(iv)
What are biotic and abiotic resources? Give some examples.
(iv) Biotic resources are
obtained from the biosphere and have life such as human beings, flora, and
fauna, fisheries, livestock, e.g., forests and animals are biotic resources.
Abiotic resources consist of all
those things which are composed of non-living things. e.g., rocks and metals.
Land, water, and soil are also abiotic resources.
C. Answer the following questions in
about 120 words.
(i) Explain land use pattern in India
and why has the land under forest not increased much since 1960-61?
Answer:(i) Land resources in India are primarily divided into agricultural
land, forest land, pasture and grazing land, and wasteland. Wasteland includes
rocky, arid and desert areas and land used for non-agricultural purposes like
housing, roads, industry, etc.
According to recent data available,
the percentage of net sown area (NSA) in India is about 54% of the total
reporting area (if, the other than current fallow lands is included). . 22.5%
is covered by forests, and 3.45% is used for grazing. The rest is a wasteland,
with traces of miscellaneous cultivation.
Improper use of forest land has led
to land degradation and made conservation of forests difficult. Human
activities like deforestation, overgrazing, mining, quarrying, etc have
contributed to the slow growth rate of forests. Thus, land under forest has
increased by only about 4% since 1960-61.
(ii) How have technical and economic
development led to more consumption of resources?
Answer (ii) The following factors
have been responsible for technical and economic development leading to
overconsumption of resources.
In colonial times, imperial powers
used their technological and economic superiority to establish control over
other countries and thereby gain access to the latter’s resources. One
country’s resources were accessible to the citizens of its colonial ruler too,
leading to increased consumption. Technical progress also results in
inefficient machinery, increased production, and greater consumption of
resources.
Technological development and
economic progress have led to populations increasing due to low mortality at
all ages. With new developments in medicine and health care, fewer people die
due to accidents, diseases, childbirth, etc. This too has contributed to higher
consumption of resources.
