Q. Galaxy Milky Way having mass of four million times than that of sun is known as

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Q. Gravitationally bound system of stars, dust and interstellar gases is classified as

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Q. Name of Galaxy in which our eight planet solar system lies is

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Q. Granular silica gel was invented by Walter A. Patrick in

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Q. Gas molecules that absorb thermal infrared radiation and are present in large quantity to change the climate system are known as

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Q. Greenhouse gases which is present in very high quantity is

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Q. Exchange of outgoing and incoming radiations that keeps the Earth warm is known as

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Q. Wavelength of infrared radiations is

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Q. Higher energy level and shorter wavelengths are features of

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Q. Wavelength of ultraviolet radiations is

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Q. Lower energy level and longer wavelengths are features of

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Q. One which is not considered as naturally occurring greenhouse gas is

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Q. Burning of fossil fuels

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Q. Average salinity or ratio of salt as per kilogram of water of ocean is

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Q. Sum of all the ecosystems is classified as

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Q. On Earth, the portion of the upper mantle and the crust are together known as its

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Q. Evaporation from ice and snow is known as

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Q. Physical and biological components of the planet are known as its

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Q. Evaporation, transpiration and sublimation are together called as

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Q. Life created from living matter is classified as

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