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The phases of the Moon occur due to its revolution around Earth. As sunlight falls on different parts of the Moon, we see varying shapes: New Moon (completely dark), Crescent, First Quarter, Gib...
The Moon takes exactly the same time to rotate on its axis as it takes to revolve around the Earth—about 27 days. This phenomenon is called synchronous rotation. As a result, only one hemisphere of the Moon is visible...
Planets are celestial bodies that revolve around the Sun, have their own gravity, and have cleared their orbit of other objects. Dwarf planets, like Pluto, also orbit the Sun but are smaller and cannot clear their orb...
Globalization is the new trend in the world scenario, which aims at integrating our economy with that of the world:· Its aim is to be realised within a certain time frame.· It is based on free and ope...
Solar energy has a bright future in India because· India is blessed with plenty of solar energy because most parts of the country receives a bright monsoon period.· India has developed technology to us...
In India coal occurs in rock series of two main geological ages, namely Gondwana, a little over 200 million years in age and in tertiary deposits which are only about 55 million years old. The major resources of Gondw...
Geologists define a mineral as a “homogenous, naturally occurring substance with a definable internal structure.” Minerals are found in varied forms in nature, ranging from the hardest diamond to the softest one. Mine...
(a) Ferrous Minerals: Ferrous minerals account for about three-fourths of the total value of the production of metallic minerals. They provide a strong base for the development of metallurgical industries. India expo...
This Kharif crop requires high temperature, (above 25°C) and high humidity with annual rainfall over 100 cm. In the areas of less rainfall, it grows with the help of irrigation. Rice is grown in the plains of north an...
Organic farming is much in vogue today because it is practiced without factor made chemicals such as fertilisers and pesticides. Hence, it does not affect the environment in a negative manner. Indian farmers should di...
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