6. Give two examples of renewable
resources.
7.Name three states having black soil
nd the crop which is mainly grown in
8. What steps can be taken to control
soil erosion in the hilly areas?
9. How are natural resources important
for man? Give five points.
10. What do you understand by
"sustainable economic development?"
11. What is agenda 21?
12. What type of soil is found in the
river deltas of the eastern coast? Give
three main features of this type of soil.
Answers
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6.Some examples of renewable energy sources are solar energy, wind energy, hydropower, geothermal energy, and biomass
7.Maharashtra, Madhya Pradesh and Chhattisgarh are the three states where black soil is found and cotton is the main crop grown in black soil.
8.Following steps are taken to control the soil erosion in hilly areas: (i) Contour ploughing: this refers to ploughing along contour lines. (ii) Terrace farming: construction of steps along the hilly areas by cutting the rock layers to reduce the flow of rivers. (iii) Plugging of gullies to prevent gully erosion.
9.Natural resources gives us many facilities to us like water , wood etc. ... 2) Without natural resources human beings can't develop as every thing mase in this world is made by using natural resources. 3) Natural resources also help the developing countries.
10.Sustainable economic growth is economic development that attempts to satisfy the needs of humans but in a manner that sustains natural resources and the environment for future generations
11.Agenda 21 is a non-binding action plan of the United Nations with regard to sustainable development. It is a product of the Earth Summit held in Rio de Janeiro, Brazil
12.Alluvial soil
Alluvial soil is found in the river deltas of the eastern coast. Features: 1) The alluvial soil contains various amounts of sand, silt and clay. 2) These soils contain ample quantity of phosphoric acid, potash and lime which are helpful in the growth of paddy, wheat sugarcane and other cereal and pulse crops.
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Answer:
6. Renewable resources include biomass energy (such as ethanol), hydropower, geothermal power, wind energy, and solar energy.
7.(i) Maharashtra, Madhya Pradesh and Chhattisgarh are the three states where black soil is found and cotton is the main crop grown in black soil.
8.Following steps are taken to control the soil erosion in hilly areas: (i) Contour ploughing: this refers to ploughing along contour lines. (ii) Terrace farming: construction of steps along the hilly areas by cutting the rock layers to reduce the flow of rivers. (iii) Plugging of gullies to prevent gully erosion.
9. a) Natural resources gives us many facilities to us like water , wood etc. ... b) Without natural resources human beings can't develop as every thing mase in this world is made by using natural resources. c) Natural resources also help the developing countries.
10.Sustainable economic growth is economic development that attempts to satisfy the needs of humans but in a manner that sustains natural resources and the environment for future generations. An economy functions in the ecosystem. We cannot separate the economy from it. In fact, an economy cannot exist without it.
11.Agenda 21 is a comprehensive plan of action to be taken globally, nationally and locally by organizations of the United Nations System, Governments, and Major Groups in every area in which human impacts on the environment.
12. Alluvial soil is found in the river deltas of the eastern coast.
a. Alluvial soil is considered the most fertile soil. ...
b. Alluvial soil contains sand, silt and clay.
c. According to age, the alluvial soil is classified as Bangar (old alluvial) and Khadar (new alluvial)
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Explanation: