Types Of Vegetation

The following major types of vegetation or biome may be identified in our country.

• Tropical Evergreen Forests
• Tropical Deciduous Forests
• Tropical Thorn Forests and Scrubs
• Montane Forests
• Mangrove Forests

(a) Tropical Evergreen:

• They are at their best in areas having more than 200 cm of rainfall with a short dry season.
• In these forest trees grow up to 60 m & above.
•  These forest yield hard wood trees.
• These forest are found in rainy parts of ti'Vestern Ghats, Assam, West Bengal, Lakshadweep and Andamar & Nicobar Islands.

• Ebony, Mahogany, Rosewood, Rubber and Cinchona are some of the important trees.
• In these forest large number of plant species are found at one place. It creates difficulty in their commercial exploitation.
•  Elephants, Monkey, Lemur and Deer are some common animals found in these forests.

(b) Tropical Deciduous forests:

• This forest is found in the maximum part of India.
• They also called the monsoon forests and spread over the region receiving rainfall between 200 cm and 70 cm.
• Trees of this forest-type shed their leaves for about six to eight weeks in dry summer to avoid loss of water through transpiration.
• On the basis of the availability of water, these forest are further divided into moist and dry deciduous.

Moist deciduous:

• These forests are found in the areas of 100 cm to 200 cm of rainfall.
• Due to a longer dry season, the trees shed their leaves during the dry season.
• Shisham, Bamboos, Sandalwood, Khair, Kusum, Arjun, Mulberry and sal are the common trees found in these forests.
• These forests cover a vast area of the country. Northeastern states, along the foot hills of the Himalayas, Jharkhand, West Orissa and Chhattisgarh and on the Eastern slopes of the Western Ghats.

Dry deciduous:

• These are found in areas having rainfall between 70 cm to 100 cm.
• These are found in the rainier part of the peninsular plateau and the plains of Bihar and U. P.
• These are open stretches in which Teak, Sal, Peepal, Neem grow.
• Most of these forests have been cleared for cultivation.
• In these forests, the common animals found are lion, tiger, pig, deer and elephant. A huge variety of birds, lizards, snakes, and tortoises are also found here.

NCERT SOLUTIONS FOR CLASS-7SCIENCE (Science for grade-7 NCERT solutions)

Chapter 1 - Nutrition in Plants

Chapter 2 - Nutrition in Animals

Chapter 3 - Fibre to Fabric

Chapter 4 - Heat

Chapter 5 - Acids, Bases and Salts

Chapter 6 - Physical and Chemical Changes

Chapter 7 - Weather, Climate and Adaptations of Animals to Climate

Chapter 8 - Winds, Storms and Cyclones

Chapter 9 – Soil

Chapter 10 - Respiration in Organisms

Chapter 11 - Transportation in Animals and Plants

Chapter 12 - Reproduction in Plants

Chapter 13 - Motion and Time

Chapter 14 - Electric Current and Its Effects

Chapter 15 – Light

Chapter 16 - Water: A Precious Resource

Chapter 17 - Forests: Our Lifeline

Chapter 18 - Wastewater Story

1.Notes on Physics for class-8 Science

2.Notes on chemistry for class-8 Science