Long answer questions.
1. Trace the relationship between man and environment historically.
2. Discuss the factors which cause imbalance in the environment.
3. Discuss various measures to conserve natural resources.
4. Discuss various measures to conserve and protect the environment.
5. Define various components and types of ecosystem.
6. What is green economy? Discuss the importance of green economy.
Answers
Answer:
1:-
The relationship between the man and the environment has been established in the early periods itself. Human beings live in the kingdom of nature and interact with it constantly. The influence of nature in the form of the air he breathes, the water he drinks, the food he eats, and the flow of energy and information.
2:-
These national environmental issues are: Pollution (air, water and soil) Degradation of natural resources such as soil erosion, deforestation, depletion of wildlife, shortage of energy, degradation of marine ecosystems and depletion of mineral resources.
3:-
Measures of Conservation of natural Resources:
1. Conservation of energy:
a. Switch off lights, fans and other appliances when not in use.
b. Use solar heater for cooking your food on sunny days, which will cut down your LPG expenses.
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c. Grow trees near the houses and get a cool breeze and shade this will cut off your electricity charges on air conditioners and coolers.
d. Use always pressure cooker.
2. Conservation of water:
a. Use minimum amount of water for all domestic purposes.
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b. Check for water leaks in pipes and toilets and repair them promptly.
c. Reuse the soapy water, after washing clothes, for washing off the courtyards, drive ways, etc.
d. Built rainwater harvesting system in your house.
3. Conservation of soil:
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a. Grow different types of plants, herbs, trees and grass in your garden and open areas, which bind the soil and prevent erosion.
b. Don’t use more fertilizer and pesticides.
c. Use nature manure to the crops.
d. While constructing the house don’t uproot the trees as far as possible.
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e. Use mixed cropping, so that some specific soil nutrients will not get depleted.
4. Conservation of food resources:
a. Don’t wastes the food instead gives it to someone before getting spoiled.
b. Cook only required amount of the food.
c. Store the food resources for the future use.
5. Conservation of forest:
a. Use non-timber products.
b. Plant more trees and protect them.
c. Over grassing must be controlled.
d. Minimise the use of papers and fuel wood.
e. Avoid of executing developmental works like dam, road and industrial constructions in forest areas.
4:-
Use less water.
Conserving water at home is one of the easiest ways to protect the environment. Think of all the times you consume water, both inside and outside your home; then, make adjustments as you can. For example: Turn off the tap while you brush your teeth.
5:-
An ecosystem consists of all the living and non-living things in a specific natural setting. Plants, animals, insects, microorganisms, rocks, soil, water and sunlight are major components of many ecosystems. ... The major types of ecosystems are forests, grasslands, deserts, tundra, freshwater and marine.
6:-
In a green economy, growth in employment and income are driven by public and private investment into such economic activities, infrastructure and assets that allow reduced carbon emissions and pollution, enhanced energy and resource efficiency, and prevention of the loss of biodiversity and ecosystem services.
The vision: a fair, green economic future
It is based around five principles: Well-being: A green economy must create genuine, sustained, shared wellbeing, going beyond mere monetary wealth to prioritise human development, health, happiness, education, and community.