NCERT Solutions for Class 7 Geography Social Science Chapter 6 - Natural Vegetation and Wildlife

(i) The growth of vegetation depends on two factors: temperature and moisture.

(ii) Natural vegetation is divided into three categories:

1. Forests – where rainfall and temperature are plentiful for plant growth

2. Grasslands – plants that grow in regions of moderate rainfall

3. Shrubs – plants that grow in dry regions

(iii) Two hardwood trees commonly found in tropical evergreen forests are rosewood and mahogany.

(iv)  Tropical deciduous forests, also known as the monsoon forests are found in regions that experience seasonal changes. These areas include India, northern Australia and America.

(v) Citrus fruits are grown in regions marked for hot, dry summers and mild rainy winters. These citrus fruits include oranges, figs, olives and grapes.

(vi) The softwood evergreen trees that grow in the coniferous forests are used for making matchboxes and packing boxes. They are also used for making pulp, which is used to manufacture paper and newsprint.

(vii) Seasonal grasslands can be found in the mid latitudinal zone and in the interior parts of the continent.

(i) c

(ii) b

(iii) a

(iv) b

(v) c

(i) Animals in the polar region have thick fur and skin so as to protect themselves from cold climatic conditions. This region has limited natural vegetation due to its cold climate.

(ii) Tropical deciduous forests are found in large parts of India, the northern part of Australia and America. Such areas experience seasonal changes and hence the tropical deciduous trees shed their leaves in the dry season to save water.

(iii) The type and thickness of vegetation change from place to place because of the change in climatic conditions, landform, temperature and moisture. Different types of plants and animals can survive in different types of vegetation.