Page 1 - Lesson Note__CL-9-Geo_Ch_-5-SUB-TOPIC-1

SAI INTERNATIONAL SCHOOL
(VIRTUAL CLASS)- LESSON NOTES

Class - IX Geography
Chapter - 5 Natural Vegetation and Wildlife

(VIRTUAL CLASSES) - MODULE-2.4
Our country India is one of the 12 mega bio-diversity countries of the world.

With about 47,000 plant species India occupies tenth place in the world and fourth in Asia in
plant diversity.

There are about 15,000 flowering plants in India, which account for 6 per cent in the world’s
total number of flowering plants.

The country has many nonflowering plants, such as ferns, algae and fungi.
India also has approximately 90,000 species of animals, as well as, a rich variety of fish in its

fresh and marine waters.

Virgin Natural vegetation refers to a plant community, which has grown naturally without
vegetation human aid and has been left undisturbed by humans for a long time. This is termed

as a virgin vegetation.
Endemic The virgin vegetation, which are purely Indian are known as endemic or indigenous

species.
Exotic Those which have come from outside India are termed as exotic plants.

Flora The term flora is used to denote plants of a particular region or period.

Fauna The species of animals are referred to as fauna.

RELIEF

Land
Land affects the natural vegetation directly and indirectly. The nature of land influences the type of

vegetation. The fertile level is generally devoted to agriculture. The undulating and rough terrains are
areas where grassland and woodlands develop and give shelter to a variety of wildlife.

Soil

The soils also vary over space. Different types of soils provide basis for different types of vegetation.
The sandy soils of the desert support cactus and thorny bushes, while wet, marshy, deltaic soils

support mangroves and deltaic vegetation. The hill slopes with some depth of soil have conical trees.
CLIMATE

Temperature