Importance of air-

1. It keeps us alive- breathing

2. Protects us from harmful rays of sun

3. Essential for suspended clouds

4. Helps in raining that leads to growth of agriculture

5. Compressed air is used many industrie and automobiles.

Importance of soil-

1. Along with sunlight, air and water, soil supports all living beings on land.

2. For farmer- productivity of agriculture produce is directly linked with soil. It supports life and helps plants grow.

3. Decomposition- contains wide variety of bacteria, fungi, protozoa, etc. which help in decomposition of organic matter

4. Shelter- besides humans, it provides shelter to wildlife and soil organisms.

5. Reservoir of water- due to its water holding capacity, soil serves as the reservoir of water and supplies water to the plants.

Importance of forest-

1. Giant water retainers

2. Absorb rainfall and release them into rivers

3. Prevents the soil from being eroded and silting up of lakes and rivers

4. Provides home to variety of wildlife

Use of fuels-

1. In our kitchen for cooking

2. In industry to provide energy to machines

3. In automobiles as petrol, diesel, etc.

Aim of conversation-

To preserve the natural resources and ensure quality of nature

To ensure continuous yield of resources bu establishing a balanced cycle of harvest and renewal.

Techniques of water conservation-

1. Sprinklers not only economize water but also effectively irrigate uneven land. Eater provided by underground perforated pipes near roots.

2. Melching is a method of covering the soil to prevent evaporation so that the soil has moisture. Cover is provided by dry plants material.

3. Rainwater harvesting is technique to store rainwater for using. It ensures supply of water in the dry months and groundwater is recharged by reservoirs.

4. Prevention of wastage of water is important. It can be prevented by closing the taps, repairing leakage and not throwing garbage in water.

Conservation of soil-

1. Terrace farming- to slow down flow of water from the mountain slope it is is vut into steps. As water flows down step to step soil eroded from one step can get deposited.

2. Contour plowing- plowing along the contours. Helps preventing rain water form washing soil away. Only used when flat land

3. Afforestation- planting trees protects the soil from erosion and helps in maintaining soil fertility.

4. Plugging the gullies

5. Controlling shifting cultivation

Erosion can be reduced by-

1. Bounding the fields

2. Controlling overgrazing- removes soil covers

3. Adopting scientific crop rotation practices- It will make the crop more fertile it means growing different crops on same piece of land

4. constructing river embankment embankments-  rivers carry with them soil from fields near the river bank during floods thereby causing great damage this can be prevented by making a strong wall with the rocks and stones on the banks of rivers

 conservation of forests-

1. to plant trees

2. Van Mahotsav for saving and planting trees

3. To prevent forest fire

4. For establishment of national parks

conservation of mineral resources-

1. better Technology

2. efficient utilisation of minerals

3. reuse and recycling of minerals

4. special conversation programs

internal recycling-

in which waste material is reclaimed as part of manufacture manufacturing process and reprocessed in factory

external recycling-

in this process worn out or used objects such as glass or paper are collected and used for manufacturing new objects

 benefits of recycling-

1.saving on natural resources

2. tane commodity at cheaper price

3. saving in energy and raw materials

4. reduces damage to environment

5. recycling a glass means fewer sandpit sand line limestone and needed

Wind power-

1. Aero generators are being used to generate electricity they use winds as the main source of energy.  the wind as energy will never run out and does not cause any pollution.

2. Hydro power generation-  water energy is also very common non conventional source of energy flowing water is used in generation of energy is known as hydro power

3. tidal power tidal power of water in a coastal areas of India can generate 9000 MB of electricity in Gulf of Cambay and Gulf of Kutch

Advantages of renewable energy resource-

1. renewable energy resources bring hope for sustained socio economic development of humanity for years when exhaustible resources will be dictated

2. Solar energy has come up in fulfilling the world's future energy requirements and pollution free use

3. some other renewable inexhaustible and cheaper resources are Hydel power nuclear power and energy.

Water pollution-

it is the most common form of water pollution is a dumping of Industrial waste into water waste of of improper contaminate of ways to which causes leakage in into groundwater and waterways

air pollution-

industrial pollution can also affect air quality and it can enter the soil causing widespread environmental problems.  major cause of air pollution is the smoke produced by burning of coal and Mineral oil which are bonded houses and in factories.

soil pollution-

solid and liquid waste of industries are dumped over the surface of soil. These waste have a lot of toxic chemicals which can be added in the soil

 noise pollution-

Industries create a lot of unwanted sound which interfere with communication leisure and relaxation noise pollution can cause hearing loss it is increasing due to use of Duty machineries.