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NCERT-7th Class- Geography

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Question 1

Consider the following statements.

1) The environment is something that surrounds an organism during its lifetime and comprises biotic and abiotic components.

2) Abiotic components comprise of Plants, Decomposers, Parasites, Animals and Man.

3) Biotic components comprise of Energy, Temperature & heat flow, Water, Atmospheric gases and wind, Fire and soil.

4) Hydrosphere, Lithosphere, Atmosphere and Biosphere are components of Environment.

Which of the following statement/s is/are correct?

Question 2

Which of the following statements are correct:

1) Ecosystem is the relation between the living organisms as well as the relation between the organisms and their surroundings.

2) Rain forest, grassland, desert, mountains, lake, river and ocean are examples of ecosystem.

3) Ecosystems require energy and carbon which are supplied by photosynthesis.

Question 3

Consider the following definitions:

1) Ecotone describes the physical space occupied by an organism as well as its functional role in the community of organisms

2) Ecological Niche is a zone of junction between two or more diverse ecosystems.

3) Home Range is the area in which an animal lives and moves on a daily or periodic basis.

4) Habitat is surroundings in which an organism lives

Question 4

Crust, Mantle and Core are three important layers of earth.

Consider the following statements in this regard:

1) Continental crust is having higher density than oceanic crust.

2) Oceanic crust is having lesser density than mantle.

Question 5

Consider the following statements regarding Rocks:

1) Igneous rocks are primary rocks on planet.

2) Extrusive igneous rocks have more fine grained structure as compared to intrusive igneous rocks.

3) Deccan Plateau is made up of intrusive igneous rocks.

Question 6

Which of the following are not Metamorphic Rocks:

1) Gneiss

2) Basalt

3) Schist

4) Granite

5) Marble

Question 7

Which of the following statements are correct regarding seismic waves:

1) P-waves move faster and are the first to be recorded by seismograph.

2) Seismic waves provide us valuable information about core of earth.

3) S-waves affect larger surface area of earth as compared to P-waves.

Question 8

Erosion may be defined as the wearing away of the landscape by different agents like water, wind and ice.

Which of the following is not formed by erosional process of river?

1) Ox-bow lake

2) Levees

3) Stacks

4) Loess

Question 9

Consider the following statements regarding Ozone gas:

1) Ozone is largely found in mesosphere.

2) Ozone is used for purifying the drinking water.

3) Ozone is a pollutant at ground level.

Question 10

Consider the following statements:

1) Polar winds tend to flow from eastern direction.

2) Doldrums are associated with thunderstorms.

3) Horse latitudes are associated with warm and dry climate and are primary cause for the existence of the world's major deserts such as the Sahara Desert in Africa.

Question 11

About 97% of the water on earth is present in oceans. The rest of the water is present in ice-caps, rivers, moisture in the atmosphere, ground water and lakes, etc.

Choose the correct decreasing order of water quantity present in:

Question 12

Consider the following statements regarding Ocean Currents:

1) The areas where a warm and cold current meet, make it easier for navigation.

2) The areas where the warm and cold currents meet, make it easier to do fishing.

3) The Labrador Ocean current is warm current while the Gulf Stream is a cold current.

Question 13

In which of the following regions of India, Tropical Rain Forests are found?

1) Eastern slope of the Western Ghats

2) Hills of the northeastern region

3) Andaman and Nicobar Islands

Question 14

Consider the following statements regarding certain forests:

1) These forests contain tall, softwood evergreen trees.

2) The woods of these trees are very useful for making pulp, which is used for manufacturing paper and newsprint.

3) Chir, pine, cedar are the important variety of trees in these forests.

4) These forests are also found in Himalayas.

These forests are:

Question 15

Which of the following are Temperate Grasslands:

1) Campos

2) Prairie

3) Veld

4) Llanos

5) Down

Question 16

Tundra is a continuous belt below the polar ice cap in the northern hemisphere wherein the growth of natural vegetation is very limited. Consider the following statements regarding Tundra:

1) The tundra is an excellent carbon sink.

2) The soil found in tundra is called Permafrost

3) Mammals of the tundra region have large body size and small tail.

4) Reptiles and Amphibians are abundant in tundra.

Question 17

Consider the following statements regarding Equatorial Region:

1) These regions lie very close to the equator between 10°N and 10°S.

2) Amazon basin, Congo basin, Niger basin and South East Asia lie in equatorial region.

3) These regions are marked by high temperature, high humidity and high rainfall.

4) Here, climate remains almost same throughout the year.

Question 18

One-Horned Rhinoceros, Bengal Tiger and Gharial are found in the Ganga Brahmaputra Basin.

Consider the following statements regarding these animals:

1) Kaziranga National Park hosts two-thirds of the world's great one-horned rhinoceroses.

2) One-horned rhinoceroses is listed as ‘Least Concern’ in IUCN red list of threatened species.

3) Bengal Tiger and Gharial both are listed as ‘Endangered’ in IUCN red list of threatened species.

Question 19

Desert animals have evolved in such a way so as to survive in harsh arid conditions.

Which of the following statements are correct regarding desert animals?

1) Desert animals tend to be nocturnal.

2) They generally have long legs.

3) They have oversized ears.

4) They are generally dark in color

Question 20

Which of the following statements are correct regarding desert plants:

1) Their leaves are waxy and thorny.

2) They have smaller leaves and fewer branches.

3) They have tiny hairs on their surfaces.

4) They have extensive root system.

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Oct 14Other State PSC