GK INFOPEDIA

[1] Instrument used for measuring area on maps is called – A. Planimeter B. Eidograph C. Pantograph D. Opisometer Ans: Planimeter Explanation : The planimeter is a drafting instrument used to measure the area of a graphically represented planar region. The region being measured may have any irregular shape, making this instrument remarkably versatile. In […]

[1] Trade winds blow from the – A. equatorial low pressure B. polar high pressure C. subtropical high pressure D. subpolar low pressure Ans: subtropical high pressure Explanation : Wind flows outward down the pressure gradient away from the subtropical highs. As it does so, it encounters the Coriolis Effect caused by the rotation of […]

[1] The deflection of the winds to the right in the northern hemisphere is caused by : A. revolution of the earth B. rotation of the earth C. uneven heating of the earth D. All the above Ans: rotation of the earth Explanation : If the Earth didn’t rotate, winds would travel either north or […]

[1] Metamorphic rocks originate from— A. igneous rocks B. sedimentary rocks C. both igneous and sedimentary rocks D. None of these Ans: both igneous and sedimentary rocks Explanation : Metamorphic rocks are rocks that have “morphed” into another kind of rock. These rocks were once igneous or sedimentary rocks. How do sedimentary and igneous rocks […]

[1] The area which is resistant to any massive structural transformation is called – A. rigid mass B. ancient landmass C. tectonic plate D. shield Ans: shield Explanation : A shield is generally a large area of exposed Precambrian crystalline igneous and high-grade metamorphic rocks that form tectonically stable areas. They are resistant to geological […]

[1] An ecosystem consists of – A. producers, consumers and decomposers in a particular area. B. all the plants and animals of an area. C. a living community and its environment. D. carnivorous and herbivorous of an area Ans: a living community and its environment. Explanation : An ecosystem consists of communities of many different […]

[1] Why are winters more severe in Southern Hemisphere than in Northern Hemisphere? A. Earth is titled towards the sun in the Northern Hemisphere B. Northern Hemisphere receives more sunlight C. Because of more iceberg activity in Southern Hemisphere D. Southern Hemisphere is less inhabited Ans: Earth is titled towards the sun in the Northern […]

[1] Hailstorms are caused due to – A. condensation B. convection C. sublimation D. freezing Ans: freezing Explanation : In a hailstorm, small ice particles that form above the freezing level (which occurs in all thunderstorms) collect either rain water or cloud water on them, forming a water shell that freezes. The tilted updraft and […]

[1] Most of the ozone in the earth’s atmosphere is found in the: A. Troposphere B. Stratosphere C. Mesophere D. Thermosphere Ans: Stratosphere Explanation : Most ozone (about 90%) resides in a layer that begins between 10 and 17 kilometers above the Earth’s surface and extends up to about 50 kilometers. This region of the […]

[1] Which one of the following is not the example of planetary winds? A. Monsoon B. Trade wind C. Land and sea breezes D. Chinook Ans: Chinook Explanation : Chinook, originally meant a warming wind from the ocean into the interior regions of the Pacific Northwest (the Chinook people lived near the ocean, along the […]