Tag: introduction to natural resources

option  B sun is correct answer . as remaining is pollutating sources 

Renewable resources are those that are replenished naturally over relatively short periods of time. It includes solar energy, tidal energy, geothermal energy, biomass, etc. Thus the correct answer is option A.

Natural resources occur naturally within environments, that exist relatively undistributed by humanity, in a natural form. A natural resource is often characterized by amounts of biodiversity and geodiversity existent in various ecosystems. Natural resources are derived from the environment. Biotic resources are obtained from the biosphere (living and organic material), such as forests and animals, and the materials, that can be obtained from them. Forests and wildlife are both renewable in the short term but non renewable once a point has been reached or to a point. Forests can be managed to some degree sustainable forestry cuts older trees, while planting new one to replace them, this works in some types of environments better than others.

Air is a mixture of gases. It contains 79% nitrogen, 21 % oxygen, 0.93% argon, 0.03% carbon dioxide, and traces of hydrogen, helium and other "noble" gases.

To avoid nuclear blasts due to Tsunami in Japan counteries are devising methods to avoid this types of disasters.

The soil is formed by breaking down of rocks by an action of wind, water and climates like thawing of water that seeped through rock and climatic changes such as weathering of rocks, landslides also causes breaking of big rocks. This is how soil is formed by all these natural processes.