CBSE Guide
NCERT Solution | Cbse Ncert Solutions - additional questions
Chapter 2, Forest and Wildlife Resources
(Contemporary India
II)
Question.1:
What are the negative factors that cause such fearful depletion of flora and
fauna?
Answer:
The negative factors that cause such fearful depletion of flora and fauna are
as under:
1.
Conversion of forests into agricultural land.
2.
Expansion of railways for which huge number of trees were cut to cater wooden
sleepers for the tracks.
3.
Mining activities.
4.
Large-scale developmental projects such as river - valley projects, housing
etc.
5.
Grazing of pastoral animals.
6.
Commercial and scientific forestry.
7.
Increasing human intervention due to growing population.
8.
Environmental pollution due to growing population which destroy the habitat for
flora and fauna.
Question.2: Define: (a) Biosphere (b) Biodiversity
Answer:
(a) Biosphere is a narrow
belt of living organisms where lithosphere, hydrosphere, and atmosphere
interact with each other e.g. Nokrek Biosphere Reserve of Meghalaya.
(b) Biodiversity or Biological
Diversity is immensely in wildlife and cultivated species, diverse in
form and function but closely integrated in a system through their
inter-dependencies.
Question.3: Cite some Human Projects responsible for destruction of flora and fauna.
Answer: (a) Big housing projects
of several private builders. (b) River valley projects like - Tehri Dam,
Narmada Project. (c) Mining projects like - Dolomite mining in Buxa in West
Bengal
Question.4: Name two Bird Sanctuaries in India.
Answer: Bhatratpur in
Rajasthan and Vedanthangal in Tamil Nadu.
Question.5: How many species of flora and fauna are found in India?
Answer:
India possesses 81000 species of fauna and 47000 species of flora.
Question.6: How much of India’s wild flora and mammals are on the threatened list?
Answer: 10% of India’s wild
flora and 20% of its mammals are on the threatened list
Also read -
- Contemporary India II, Forest and Wildlife Resources | Class 10 NCERT (CBSE) Social Science Geography | Chapter 2, Textbook Exercise Solutions
- Xth Geography - Contemporary India II - CBSE Guide NCERT Solution (for complete textbook, all chapters)
Question.7: Write a short note on “Project Tiger”.
Answer: The Project
Tiger is one of the well-publicized wildlife campaigns in the world
which was started in 1973. The aim of this project was to conserve the tiger population.
Tiger is one of the key
wildlife endangered species. In 1973 the authorities realised that the tiger
population had come down substantially. The major threats to tiger population
are -
=> Poaching for trade
=> Shrinking habitat
=> Growing human
population
=> Depletion of prey
species.
Indian and Nepal provide
habitat to about two-thirds of the surviving tiger population of the world.
Tiger reserves in India are -
=> Corbett National Park
(Uttaranchal)
=> Sunderbans National
Park (WB)
=> Manas Tiger Reserve
(Assam)
=> Periyar Tiger Reserve
(Kerala)
=> Bandhavgarh National
Park (MP)
=> Sariska Wildlife
Sanctuary (Rajasthan)
Question.8: Why do we need to conserve our forests and wild life resources ? Explain any three reasons.
Answer: There has been a rapid decline
in forests and wild life population especially during the last century.
Conservation of forests and wild life resources are necessary because of
numerous reasons. The three most important reasons are explained below:
1. Conservation maintains the
ecological balance - Forests play a significant role in balancing the
ecological system since they are the primary producers on which all other
living beings depend. Depletion of forests accelerates soil erosion, affects
flow of ground water, causes floods, and disappearance of wildlife etc.
2. They provide economic benefits
- Animals provide us valuable food products like - milk, egg, and raw materials
such as wool, hides and skins. Forest products provide livelihood for many
communities, also fuel and medicinal sources. Plants re-create the air we
breathe.
3. Conservation is needed to protect
wildlife as it is threatened by human intervention - Human beings depend on
biodiversity for their very survival. Diverse activities due to growing human
population have continuously eroded the wildlife habitat.
Question.9: Explain the importance of flora and fauna in our daily life.
Answer: Flora and fauna an important
role in our daily life because they purify the air we breathe, the water we
drink, and enriches the soil that supports our agriculture without which we cannot
survive.
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