Geography Xth

 1. Multiple choice questions.

(i) Which one of the following types of resource is iron ore?

(a) Renewable

(b) Biotic

(c) Flow

(d) Non-renewable

Answer:

Non-renewable

(ii) Under which of the following type of resources can tidal energy not be put?

(a) Replenishable

(b) Human-made

(c) Abiotic

(d) Non-recyclable

Answer:

Replenishable

(iii) Which one of the following is the main cause of land degradation in Punjab?

(a) Intensive cultivation

(b) Deforestation

(c) Over-irrigation

(d) Overgrazing

Answer:

Over-irrigation

(iv) In which one of the following states is terrace cultivation practised?

(a) Punjab

(b) Plains of Uttar Pradesh

(c) Haryana

(d) Uttarakhand

Answer:

Uttarakhand

(v) In which of the following states is black soil predominantly found?

(a) Jammu and Kashmir

(b) Maharashtra

(c) Rajasthan

(d) Jharkhand

Answer:

Maharashtra

2. Answer the following questions in about 30 words.

(i) Name three states having black soil and the crop which is mainly grown in it.

Answer:

3 states are

  1. Maharashtra
  2. Gujarat
  3. Madhya Pradesh

The crop grown is 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.

Answer:

The type of soil found in river deltas is Alluvial Soil.

  1. It is very fertile and, therefore, good for the cultivation of crops
  2. It consists of various proportions of sand, silt and clay

(iii) What steps can be taken to control soil erosion in hilly areas?

Answer:

The main techniques that can be used are given below.

  1. Contour ploughing
  2. Terrace farming

iv) What are the biotic and abiotic resources? Give some examples.

Answer:

Biotic resource:

  1. These are resources that are obtained from the biosphere
  2. These resources have life
  3. Examples are plants, animals, fish, human beings, livestock etc.

Abiotic resource:

  1. These resources are composed of non-living things
  2. Examples are water, minerals, metals, wind, solar energy etc.

1. Multiple choice questions.

(i) Which of these statements is not a valid reason for the depletion of flora and fauna?

(a) Agricultural expansion.

(b) Large scale developmental projects.

(c) Grazing and fuelwood collection.

(d) Rapid industrialisation and urbanisation.

Answer:

Grazing and fuelwood collection

(ii) Which of the following conservation strategies do not directly involve community participation?

(a) Joint forest management

(b) Beej Bachao Andolan

(c) Chipko Movement

(d) Demarcation of wildlife sanctuaries

Answer:

Demarcation of wildlife sanctuaries

2. Match the following animals with their category of existence.

Animals/PlantsCategory of existence
Black BuckExtinct
Asiatic ElephantRare
Andaman wild pigEndangered
Himalayan Brown BearVulnerable
Pink Head DuckEndemic

Answer:

Animals/PlantsCategory of existence
Black BuckEndangered
Asiatic ElephantVulnerable
Andaman wild pigEndemic
Himalayan Brown BearRare
Pink Head DuckExtinct

3. Match the following.

Reserved ForestsOther forests and wastelands belonging to both government and private individuals and communities
Protected ForestsForests are regarded as most valuable as far as the conservation of forest and wildlife resources is concerned
Unclassed ForestsForest lands are protected from any further depletion

Answer:

Reserved ForestsForests are regarded as most valuable as far as the conservation of forest and wildlife resources is concerned
Protected ForestsForest lands are protected from any further depletion
Unclassed ForestsOther forests and wastelands belonging to both government and private individuals and communities

4. Answer the following questions in about 30 words.

(i) What is biodiversity? Why is biodiversity important for human lives?

Answer:

Biodiversity refers to the variety of life forms found on earth. It is a measure of variation at the ecosystem, species and genetic level. Biodiversity is abundant in tropical areas. Tropical areas cover 10 per cent of the earth surface, but they host 90% of the world’s species.

Contribution of biodiversity in human lives

  1. Agriculture – A variety of plant species meet our needs for food.
  2. Its contribution to business and industry
  3. Leisurely activities
  4. Ecological processes

(ii) How have human activities affected the depletion of flora and fauna? Explain

Answer:

  1. Various river valley projects have affected the flora and fauna.
  2. Many illegal mining projects have depleted the flora and fauna.

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