Indian Geography - General Knowledge Questions and Answers - in Hindi

Death Valley is a desert valley located in eastern California, USA. It is one of the hottest places on earth.

The ionosphere is the part of the atmosphere that is ionized by solar radiation. It plays an important role in atmospheric electricity and creates the inner edge of the magnetosphere. It has practical significance because, among other things, it reflects radio waves back to the earth.

About 99% of the total atmospheric mass is concentrated in the first 20 miles (32 km) above Earth's surface.

Distribution of temperature across the latitudes over the surface of the earth is called its horizontal distribution. On maps, the horizontal distribution of temperature is commonly shown by isotherms.

The standard atmosphere (symbol: atm) is a unit of pressure defined as 1013.25 mbar (101325 Pa), equivalent to 760 mm Hg (torr), 29.9212 inches Hg, or 14.696 psi.

Rubber is a tropical tree. It requires high temperature through out the year between 20–30°C. In some cases (younger trees), rubber trees can withstand a low temperature of around 15°C for a short period of time. An average rainfall of above 200cm is necessary for the latex tree cultivation.

Coal is a fossil fuel that is made from plant residues which lived and died million of years ago when parts of the earth were covered with huge swampy forests. Coal is classified as a nonrenewable energy source because it takes millions of years to build.

Coal is classified into four main types are peat, lignite, bituminous, and anthracite.

Peat Contains less than 40 to 55 per cent carbon.It is the first step in coal formation.peat contains a lot of moisture. It is a very soft brown coal.

Lignite coal usually contains 40%–55% carbon.It is a soft brown coal that still contains a high amount of moisture.This is lower grade coal.

Bituminous coal contains 45%–86% carbon. It is most widely available and used.It is a dense, compact, and is usually in black colour.

Anthracite coal contains 86%–97% carbon and generally has the highest heating value of all ranks of coal. It is hard and dark black in color,and has very light weight when compared to other forms of coal, as there is very little moisture present in it.It is the highest grade of coal.

The ENSO cycle, including both El Niño and La Niña, causes global changes in temperature and rainfall. Developing countries that depend on their own agriculture and fishing, particularly those bordering the Pacific Ocean, are usually most affected. In American Spanish, the capitalized term El Niño means "the boy".

The black soil is also known as Regur soil. This type of soil is made up of volcanic rocks and lava.

Yellow and red soils is found in south India. It develops on crystalline igneous rocks in areas of low rainfall in the eastern and southern part of the Deccan Plateau.