I. Answer the following
questions in Brief:
1. Write the definition of
Environmental studies.
The word environment is
derived from the verb “Environ” which means to surround or to encompass. Environment means the
combination of conditions which surrounds man. There is a reciprocal
relationship between man and the
environment around him.
2. What are the types of
Forest?
There are several types of
Forest. They are:
• Coniferous
• Temperate Evergreen
• Deciduous and
• Tropical rain
3. What are the types of
Water resources?
There are four types of Water Resources. They
are:
• Atmospheric Water
• Surface Water
• Ground Water and
• Stored Water
4. What is meant by
Drought?
A drought is a period of dryness
due to lack of rain. All the deserts of the world are stricken by permanent drought. Deserts
are situated in the sub-tropical high-pressure belt. The contingent drought is
temporary. They occur
whenever and wherever rainfall is regular.
5. What is meant by
Rainwater Harvesting?
This is the pet scheme of
chief minister of Tamil Nadu. The Tamil Nadu government has made compulsory arrangements
made to harvest rain water in old as new buildings.
6. What is meant by
Renewable and Non-Renewable Source of Energy?
Renewable Source of Energy: The Renewable
source of energy mentioned in danger of being exhausted. So, man is more and more
unconventional energy resources which are renewable.
Non- Renewable Source of Energy: Oil, Gas and
Coal are some of the non- renewable source of energy.
7. What are the basic
components of an Eco-System?
Eco-System has four basic
components. They are:
• Abiotic Substance (Non-
Living substance)-
• Producer (Green Plant)
• Consumer (Heterotrophic
Organism)
• Decomposer (Bacteria and
Moulds)
8. What are the different
types of Eco-System?
• Terrestrial
• Aquatic
• Wetland
9. What is meant by
Biodiversity?
Biodiversity is variety and
variation of living organisms. Biodiversity is diversity of an eco-system, species and genes.
10. What are the different
types of Bio geographical classification of India?
• Historical Bio geography
• Ecological Bio geography
• Phyto-geography
• Zoo-geography
11. What is meant by
Environmental pollution?
Environmental pollution is process of making
air, water and soil dirty. It is undesirable change in physical, chemical or biological
characteristics of air, land and water.
12. What are Solid Wastes?
Solid waste are unwanted
and discarded things that are not liquid or gaseous are called solid waste.
13. What is meant by
Disaster management?
Disaster management is
dangerous turn and water overflows and submerges plant.
14. What is meant by Global
Warming?
The current average global
temperature is about 14 degree Celsius. Scientists have warned that the globe is like to get hotter
by three to five degree Celsius within next century.
15. What is meant by Ozone
Layer?
Ozone is a pale blue gas of
the Stratosphere. It also referred to as Ozone umbrella because large proportion of the Sun’s
ultraviolet rays protects the earth from harmful rain. Ozone layer is steadily
growing thinner and thinner. In
1969 to 1986, Ozone layer decreased by 3 percentage.
16. What is meant by HIV
and AIDS?
AIDS: Accrued Immune
Deficiency Syndrome is popularly known as AIDS. The infected state is called HIV+. It takes
five to ten years to show the disease symptoms. This advanced state is called
AIDS.
II. Answer the following
questions in Paragraph: -
1. Describe the Various
components of Environment.
2. Describe the need for
Environmental studies.
3. Describe the difference
between energy resources and land resources.
4. Describe food chain and
food web.
5. Write about Ecological
Pyramid.
6. Comment on Global,
National and Local Levels.
7. Write about Hot spots of
Diversity in India.
8. What is meant by Nuclear
Hazards? Describe.
9. Describe about Global
Warming and Acid rain.
10. Write about the role of
Information Technology and Health in Environment.
III. Answer the following
questions in Detail:
1. Explain the structure of
Marine Eco System.
2. Explain about Wild Life
Sanctuary.
3. Elucidate the different
kinds of Pollution.
4. Describe the effect of
Pesticide on Agriculture.
5. Describe the energy flow
in Eco system.
6. Give an account of
Forest of India.
7. Write an essay about
Ozone depletion and Acid Rain.
8. Explain the causes and
effects of Global Warming.
9. Explain How to control
AIDS.
10. Explain the
Environmental Legislation Act.
11. Write an essay about
various Natural disasters and how to control them.
12. Explain the
conservation of Biodiversity.
13. Write an essay about
Terrestrial and Aquatic Ecosystems.
14. Explain the functions
of an Eco system.
15. Explain the different
types of water.
16. Explain about the
Hydrological cycle.
17. Write a note on the
Multi-disciplinary nature of environmental studies.
18. What steps have been
taken by the Indian Government to prevent environmental pollution.
