Geography

Igneous Rock

Igneous Rock Definition Igneous rocks are formed by the cooling and hardening of molten material called magma. It is one of the three main rock types, the others being sedimentary and metamorphic. The word igneous comes from the Latin word ignis, meaning fire. Volcanic rocks are named after Vulca.....

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Proterozoic

Proterozoic Definition Proterozoic is the later of the two divisions of the Precambrian Eon, from about 2.5 billion to 540 million years ago. The Proterozoic was characterized by the formation of stable continents, the appearance of abundant bacteria and archaea, and the buildup of oxygen in the .....

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Yangtze River – China

Yangtze River, longest river in both China and Asia and third longest river in the world, with a length of 3,915 miles (6,300 kilometres). The Yangtze River has a strong claim to being the most interesting river in the world, with a wide variety of tourist attractions, scenery, and culture along .....

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Amazon River

Amazon River, the greatest river of South America and the largest drainage system in the world in terms of the volume of its flow and the area of its basin. The Amazon River is the second longest river in the world, and the largest in terms of the size of its watershed, the number of […]Read More »

Nile River

Nile River, the longest river in the world, called the father of African rivers. It rises south of the Equator and flows northward through northeastern Africa to drain into the Mediterranean Sea. The two major tributaries, commonly known as the White Nile and Blue Nile whose sources are Central a.....

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Health Geography

Health Geography Definition Health geography is the study of the distribution, diffusion, determinants, and delivery associated with health and health systems in human populations. It is a close relative of medical geography. It shares a focus on geographical variations in health and healthcare. .....

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Global Health Effects and Prevention of Air Pollution

Global Health Effects and Prevention of Air Pollution Air pollution is a chemical, physical or biological agent that alters the natural characteristics regarding the atmosphere. Air pollution is the world’s deadliest environmental problem. It kills 7 million people each year, or one in eight de.....

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Definition, Causes and Effects of Air Pollution

Definition, Causes and Effects of Air Pollution Air pollution is one such form that refers to the contamination of the air, irrespective of indoors or outside. A physical, biological or chemical alteration to the air in the atmosphere can be termed as pollution. It occurs when any harmful gases, .....

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Definition, Causes and Effects of Climate Change

Definition, Causes and Effects of Climate Change About Climate Change – Climate Change is a change which is attributed directly or indirectly to human activity that alters the composition of the global atmosphere and which is in addition to natural climate variability observed over comparative .....

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Prevention of Water Pollution

Prevention of Water Pollution Water pollution is caused by many factors including but certainly not limited to: uncontrolled construction sites, leaking sewer lines, storm-water runoff, accidental spills and leaks, improper discharge of wastes, mining activities, foundries, animal waste, and othe.....

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Describe about Water Pollution

Describe about Water Pollution Over two thirds of Earth’s surface is covered by water; less than a third is taken up by land. As Earth’s population continues to grow, people are putting ever-increasing pressure on the planet’s water resources. In a sense, our oceans, rivers, and.....

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Mount Etna: Surprise Explosion on Sicilian Volcano

Mount Etna: Surprise Explosion on Sicilian Volcano Mount Etna, Europe’s largest volcano, made headlines Thursday (16th March 2017) when an explosion injured at least 10 people. A BBC crew captured the moment in a harrowing video, showing scorching hot rocks and ash pelleting visitors. None of t.....

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