Natural Vegetation and Wildlife Class 7 Solutions

Natural Vegetation and Wildlife Class 7 Solutions

 

Answer the following questions.

 

[Q] Which are the two factors on which the growth of vegetation mostly depends?

Climate and moisture are the two factors that most influence the growth of vegetation.

 

[Q] Which are the three broad categories of natural vegetation?

Natural vegetation is generally classified into 3 broad categories they are forests, grasslands, and shrubs.

 

[Q] Name the two hardwood trees commonly found in tropical evergreen forest.

Hardwood trees like rosewood, ebony, mahogany are common trees found in tropical evergreen forests.

 

[Q] In which part of the world are tropical deciduous forest found?

Tropical deciduous is the monsoon forests found in a large part of India, northern Australia, and Central America.

 

[Q] In which climatic conditions are citrus fruits cultivated?

Citrus fruits such as oranges, figs, olives, and grapes are commonly cultivated in hot dry summers and mild rainy winters.

 

[Q] Mention the uses of coniferous forest.

The woods of coniferous forest trees are very useful for making pulp, which is used for manufacturing paper and newsprint. Matchboxes and packing boxes are also made from softwood. Chir, pine, and cedar is the important variety of trees in these forests.

 

[Q] In which part of the world is seasonal grassland found?

Seasonal grassland is found in the mid latitudinal zones and in the interior of continents.

Tick the correct answer.

Mosses and Lichens are found in:

  • Desertic Vegetation
  • Tropical evergreen forest
  • Tundra vegetation

 

Thorny bushes are found in:

  • The hot and humid tropical climate
  • Hot and dry desertic climate
  • Cold polar climate

 

In tropical evergreen forests, one of the common animals is:

  • Monkey
  • Giraffe
  • Camel

 

One important variety of coniferous forests is:

  • Rosewood
  • Pine
  • Teak

 

Steppe grassland is found in

  • Africa
  • Australia
  • Central Asia

 

Match the following.

Walrus A polar animal
Cedar Softwood tree
Olives A citrus fruit
Elephants An animal of tropical deciduous forest
Campos Tropical grassland of Brazil
Downs Temperate grassland in Australia

 

Give reasons.

 

[Q] The animals in the polar region have thick fur and thick skin.

Polar animals have thick fur and thick skin in order to protect themselves from the cold weather. Some of the animals seen here include seals, walruses, musk-oxen, polar bears, and snow foxes.

 

[Q] Tropical deciduous trees shed their leaves in the dry season.

Tropical deciduous trees shed their leaves in the dry season to conserve water. The hardwood trees found in these forests are sal, teak, neem and shisham.

 

[Q] The type and thickness of vegetation changes from place to place.

Temperature, altitude, soil thickness, and rainfall at different places affect the type and thickness of the vegetation.

 

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