How are cold deserts formed? While giving names of three famous cold deserts in the world, describe their location.

Desert is a region of vast dryland with low precipitation. It is formed due to atmospheric conditions that prevent rain. Cold deserts are formed in temperate regions, at higher altitudes and are located at the centre of the continent. Because ..

Differentiate between between cyclone, hurricane, tornado and twister. Explain the necessary conditions for their formation. Which of these are generally observed in India and at which places?

Cyclone and Hurricane Cyclone is weather situation characterised by a rotating organized system of clouds coupled with thunderstorms and has low pressure centre and closed low-level atmospheric circulation. Hurricane is also similar weather phenomenon. They differ in name based on ..

Draw a map indicating location of tropical rainforests in the world. Discuss their importance to mankind.

Rainforests cover only 6% of the total Earth’s land surface. The major portion of rainforests is located in the Amazon River Basin in South America. These are also found in western Africa and parts of Southeast Asia and Madagascar Island. In ..

How are land and sea breezes formed? How these affect the microclimate of the coastal areas? Explain.

The land breeze and sea breeze are result of heating differences between land and water bodies. These are mainly observed in the coastal areas. While land breeze is the movement of wind from land towards sea, sea breeze is the ..

Examine the factors on which location of semiconductor and electronic chip making industry depend. Enumerate the steps taken by India to boost electronic manufacturing in country.

The semiconductor and electronics chip industry is key for consumer electronics, Computers and even automobiles. It is largely concentrated in East Asian nations like Japan, South Korea and Taiwan. Factors affecting location of this industry: Labour – Skilled labour is ..

What is the effect of geographic isolation on speciation? Discuss with suitable examples?

Geographic isolation refers to population of organisms, plant and animals which are separated from members of same species thus cannot exchange genetic material. This separation may occur due to variety of reasons like barriers, natural events like earthquakes. Effect of ..

Discuss the factors that induce Urban Heat Island (UHI) effect. What strategies can be adopted to reduce the UHI effect? Explain.

Urban Heat Island (UHI) refers to the phenomenon which causes an increase in air and surface temperature of the urban areas in comparison to their rural counterparts. Factors that induce Urban Heat Island (UHI) effect are: Natural vegetation replaced by impervious ..

Explain Madden-Julian oscillations and its difference from El-Nino? Discuss its impact on Indian monsoon.

Madden-Julian Oscillation is a system of cloud, wind and rain which keeps moving around the globe. Difference from El-Nino: El-nino originates in western coast of South America (East Pacific) and impacts global climate especially Indian Ocean Maiden-Julian oscillation moves around ..