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. They tend to learn them through GED course.This reason also makes the study of GED important. Tutor As the industrial revolution probed Americans to think about the environment they lived in, Theodore Roosevelt instated national parks to preserve land for the future of our nation. Techn..

The rainfall and its characteristics is one of the widely studied subjects in climatology. Success or failure of rainfall not only affect the hydrological resources like surface resources (river, stream, ponds) and underground resources of water but also decides the growth of entire plan..

Question 71 - Question: List the uses of solar cells. Answer: A Solar cells or solar cell panels are used in: 1) Artificial satellites and in space probes like Mars orbiters 2) Wireless transmission systems or TV relay stations in remote locations 3) Traffic signals, calculators..

Electric power is usually generated at places which are far away from the places where it is consumed. At the generating station, the electric power is generated at 11,000 volts. This voltage alternates at a frequency of 50 Hz. The power is transmitted over long distances at high voltag..

It is mainly done through geostationary satellites. These satellites are fitted with special devices. These devices can receive signals from an Earth station and transmit them again in different directions. These special devices are called transponders. A TV transmitter on an Ea..

One of the best loved writers for childern and adults is Ruskin Bond. Bond has forged an enduring relationship with the hills of North India by living in a hill station there. His vivid description of Nature and people, and gentle humour are characteristics of his writing...

Hydroelectric power stations can cause some major problems. Large dams must be built to hold the water before it flows to the turbine. This causes ecological imbalance. At times small pieces of earth get trapped at the bottom of still water in the reservoir. As these deposits build up the..

Energy - Energy can be defined as the ability to do work. A good source of energy would be the one which would: do a large amount of work per unit volume or mass be easily accessible be easy to store and transport and be economical Fossil Fuel Fossil fuel is a hydrocarbon deposit, such as petroleum..

There are two overlapping water cycles operating in nature. 1) Global water cycle 2) Biological water cycle. Global water cycle does not involve life. Water evaporates from water bodies like seas and oceans (more than 75% of total evaporation), lakes and rivers. Condensation of vapour leads to prec..

. How effective has the role of the private sector been in checking the growth of cities? 5. What does the writer mean by 'quality-of-life' problems? 6. What is the thinking with regard to police involvement in the 'quality-of-life' aspect in a metropolis? 7. What are the writer's views on the open..