The growth of population has had profound effects on the social structure, economic development, and politics of most countries. It is a key variable in human development theory. A notable effect of population growth is that it has caused global life expectancy to greatly increase. Population growth is the increase in the number of people
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Population density is often used as a simple relative measure of how an organism responds to local conditions. If conditions are not good for the species, the density will be low (organisms will have died or moved out of the sampled area), whereas if conditions are good the density will be high (organisms will have
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India is a country of great diversities and vast spaces. It extends from arid deserts to lush green forests and from mountains to fertile plains. The population has to be spread all over the country since the livelihood sources do not concentrate in one place. The ruggedness of the terrain also makes it difficult for
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A disaster is any event that causes damage to humans, property, or the environment. A disaster typically refers to a natural hazard that results in a flood, hurricane, drought, tornado, earthquake, tsunami, or volcano. A disaster can also occur as a result of deliberate human activity such as war, pollution, oil spills etc. The Disaster
India’s landscape is rich with vast terrains, ranging from snow-capped mountains to golden sandy beaches. With its land-use statistics varying substantially between regions, India still has significantly high biodiversity and biodiversity conservation. Restriction on the construction and other developmental activities such as roads and dams, limiting agriculture to valleys and areas with moderate slopes, and
Landslides are caused by mechanical disturbances, in which large mixed mass of rock, earth, and debris move down a slope. Debris flows, also known as mudslides, are a common type of fast-moving landslide that tends to flow in channels. These are typically steeper slopes with less stable soils or bedrock, slow flows with high sediment
A drought is a serious natural disaster that may occur if there is a series of abnormally dry months or years. In addition, the drought frequently affects the people to leave their homes and move to wetter areas who are intended for refugees according to the International Organization for Migration. An estimated 55 million people
Flood is a natural phenomenon occurring in different parts of the world. It occurs when an area is overwhelmed by an excessive amount of water, which causes damage to life and property. Floods occur commonly when water in the form of surface run-off exceeds the carrying capacity of the river channels and streams and flows
The tropical cyclone is a cyclonic windstorm having an organized vortex, formed over the warm sea surface. A cyclone generally occurs in the areas of coordinated wind flow around low-pressure. The tropical cyclone is a closed atmospheric circulation which consists of lower pressure, warm air supply, cloudiness, heavy rainfall and relatively calm air. Mostly tropical
A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level wind circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain. The term tropical refers to the geographical origin of these systems, which form almost exclusively over tropical seas. In addition to strong winds and
