Study Materials
Volcanoes
A volcano is an opening in the earth’s crust through which gases, molten rocks materials (lava), ash, steam etc. are emitted outward in the course of an eruption. Such vents or openings occur in those parts of the earth’s crust...
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El Nino and La Nina
El Nino and La Nina are climate patterns in the Pacific Ocean affecting the weather worldwide. These phenomena are extremely important for understanding the global climate. El Nino El Nino was first recognized by Peruvian fishermen off the coast of Peru as the...
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10 Largest Deserts in the World
A desert is a barren area of landscape where little precipitation occurs and consequently living conitions are hostile for plant and animal life. Deserts are often some of the hottest and most inhospitable places on Earth. The Largest Deserts in the World 1. Antarctic Desert Area (km²): 14,000,000Location: Antarctica The...
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Rocks
Rock is naturally formed by the addition of minerals or inorganic salts. Humans initially received tools for hunting and protection from the rocks. They used the rocks as a necessary for the building construction of the habitats and the...
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Solar System
The four Smaller Inner Planets are MercuryVenusEarthMars The Four Outer Or Giant Planets are JupiterSaturnUranusNeptune The Solar System also contains smaller objects, The asteroid Belt which lies between the orbits of Mars and Jupiter mostly contains objects composed, like the terrestrial planets, of rock and...
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Layers Of Atmosphere
An atmosphere is more likely to be retained if the gravity it is subject to is high and the temperature of the atmosphere is low. Earth Atmosphere Nitrogen (about 78%) – nitrogen is fixed by bacteria and lightning to produce ammonia used...
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Earth and Universe
Earth Earth’s gravity interacts with other objects in space, especially the Sun and the Moon, Earth’s only natural satellite. Earth revolves around the Sun in 365.26 days, a period known as an Earth year. During this time, Earth rotates about its axis about 366.26 times. Layers of Earth 1....
