Importance of environment section in UPSC. Albedo effect would be relatively higher in: early morning and late evening; early morning only; noon; late evening only ; 5. During the early Archean, Earth’s heat flow was nearly three times higher than it is today because of the greater concentration of radioactive isotopes and the residual heat from the Earth’s accretion. The reflected amount of radiation is called the albedo of the earth. 1441. Albedo of old snow is layer than that of the fresh snow. 31%. The fraction of radiation reflected back in the space from the earth’s atmosphere and surface without causing any heating is called Albedo. UPSC Daily Current Affairs | Prelim Bits 29-02-2020 . In the UPSC prelims, at least 15 to 20 questions are linked with the environment section directly or indirectly. Direct Absorption of Solar Radiation | UPSC – IAS. Weather & Climate 65-67 9. For surfaces between the tropics (23.5°N to 23.5°S) the average albedo is 19-38%. UPSC; TNPSC; TEACHING; AFTER 12; _College Finder; _ENGINEERING-IIT; _MEDICAL-NEET; _LAW-CLAT; MAGME GURU APP; LATEST. Like solar radiation in general, albedo values also vary across the globe with latitude but Earth’s average albedo is around 31%. February 29, 2020. 1. 3. Origin of Universe, Earth & Life 6-11 3. Union Power Ministry has inaugurated eleven new ‘Renewable Energy Management Centers’ (REMC). Since the late 1970s, scientists estimate Earth’s average albedo is about 0.30. Soil 52-62 UNIT-II : CLIMATOLOGY 8. Earth’s climate system includes Oceans, Land surface, Cryosphere (polar ice), Biosphere and Atmosphere. It is categorized as a hot Jupiter since its radius almost twice that of Jupiter and a year of just over one Earth day. CLIMATOLOGY MCQS SET 09 81. Interior of The Earth 1.1 The study of the earth’s interior is essential 1.2 Direct Sources of information about the interior 1.3 Indirect Sources of information about the interior 1.4 Seismic waves • How are earthquake waves produced? 12. There was considerably greater tectonic and volcanic activity; the mantle was less viscous and the crust thinner. The remaining 65 units are absorbed, (14 units within the atmosphere and 51 units by the earth’s surface). It is a reflection coefficient and has a value less than one. The Greenhouse effect is a natural phenomenon through which the solar radiation is trapped in our atmosphere by greenhouse gases, i.e. Pressure & Wind Systems 81-100. The reflected amount of radiation is called as the albedo of the earth. THE UNIVERSE MCQS SET 06 1. Heat budget of the Earth – Earth maintains its temperature. Magme Guru on. Our Earth 12-29 4. Albedo of Snow is high which helps balancing heat budget of earth melting of permafrost will disrupt the balance; Health Risk: microbes that have been frozen in the permafrost for millennia can come back to life after the thaw. The Earth’s albedo has a cooling effect. Body: Discuss its spatial aspects, location etc. Its albedo is 0.064, whereas the albedo of earth is 0.3 and moon is 0.12. The earth radiates back 51 units in the form of terrestrial radiation. Liquid is much more absorbent and less reflective. The ultimate goal of the geo-engineering is … GEOGRAPHY GK SSC / RAILWAY TNPSC UPSC CLIMATOLOGY MCQS SET 09. Temperature Distribution on Earth for UPSC Examination.. Sun is the major source of atmospheric temperature. Q.14) Consider the following statements: The Earth’s magnetic field has reversed every few hundred thousand years. GK, General Studies, Optional notes for UPSC, IAS, Banking, Civil Services. Albedo Albedo can be simply defined as a measure of how much light that hits a surface is reflected back without being absorbed. The amount of heat received in form of insolation equals the amount lost by Earth through terrestrial radiation. Which of the statements given above is/are correct? Earth’s magnetic equator passes through Thumba in South India. The value of 0 refers to a blackbody, a theoretical media that absorbs 100% of the incident radiation. Enrich Your Learning: More about albedo of the earth: The albedo effect when applied to the Earth is a measure of how much of the Sun’s energy is reflected back into space. Exoplanet – A Planet that orbits a star other than a sun. carbon dioxide, methane, hydrofluorocarbon, nitrous oxide, ozone and water vapour. The overall albedo of clouds is larger than other surface. 2. When a surface absorbs light, however, solar energy is turned into heat. 2. The albedo of Earth, therefore, is about 31 percent. Albedo is important to Earth scientists because it plays a significant role in our planet’s average surface temperature. UPSC Geography The origin and evolution of the earth Question Bank done Universe / Sun / Planets / Earth Total Question - 194 question_answer1) The colour of the star is an indication of its . (a) Albedo is the fraction of solar energy (shortwave radiation) reflected from the Earth back into space. The reflective quality of a surface, expressed in percentage of the total energy received known as its albedo. A) Distance from the earth done clear. 1.5 Types of Seismic waves or earthquake waves • Body waves • Surface waves (L-Waves) • How do seismic waves help in understanding the earth’s inter This system evolves in time as per influences of its own int. However, today anthropogenic factors like expanded agriculture, industrialization, increasing urbanization have resulted in deforestation, increased concentration of Green House Gases(GHG’s) which have caused imbalance in the heat budget of earth by causing variation in overall albedo of earth surface and amount of heat retained in atmosphere and in oceans at given point of time. Important Questions related to UNSC for UPSC. THE UNIVERSE MCQS SET 06 by. July 18, 2020 in GEOGRAPHY, GK, SSC / RAILWAY, TNPSC, UPSC. When a surface reflects incoming sunlight, it sends the energy back to space, where it doesn’t affect temperature or climate. The albedo of water surface varies from 2 to 99 per cent depending on the angle of incidence of the sun's rays. Rocks & Minerals 30-32 5. Saturday, July 18, 2020. September 8, 2020 Albedo – Fraction of light falling on a surface that is reflected. Weathering, Mass Movement & Erosion 33-40 6. Find out the concept of Albedo, how earth’s albedo effects the Global Warming, which is very useful for the competitive examinations like UPSC-prelims, SSC, State Services, NDA, CDS, and Railways etc. At the poles, it can be as high as 80% in some areas. UPSC PRELIMS+MAINS A) Economic ... Albedo is a measure of how much light that hits a surface is reflected without being absorbed. Dec 11, 2020 - World Climate and Climate Change (Part-1) UPSC Notes | EduRev is made by best teachers of UPSC. Distribution of Temperature & Heat Budget 72-80 11. (a)1 only (b)2 only (c) Both 1 and 2 (d) Neither 1 nor 2 . Who are the 15 members of the United Nations Security Council? In fact, the atmosphere receives a very low amount of heat energy from the Sun as it receives most of its energy from the long-wave terrestrial radiation.. Define briefly the concept – Ice–albedo feedback is a positive (exacerbating) feedback climate process where a change in the area of ice caps, glaciers, and sea ice alters the albedo and surface temperature of Earth. Friday, April 24, 2020. It is a measure of the reflectivity of the earth’s surface. B) Distance from the sun done clear. Body: Discuss its spatial aspects, location etc. iasparliament. Select the correct statement using the codes given below. Ans. In this article, I want to walk you through the Temperature Belts Of World i.e. These REMCs will make it possible for the country to have more of renewable energy, … The air in contact with the earth rises vertically on heating in the form of currents and further transmits the heat to the atmosphere by convection. a) 1 only b) 2 only c) Both 1 and 2 d) None of the above; Ans- b. Explanation-Statement 1 is wrong. Renewable Energy Management Centers. Only 24 units of incoming solar radiation warm the atmosphere directly. UPSC DAILY CURRENT AFFAIRS | PRELIM BITS 29-02-2020. In the UPSC mains, you can expect at least 2-3 questions from this section. Ablation – Wastage of glacial ice through melting and sublimation. Albedo of Snow is high which helps balancing heat budget of earth melting of permafrost will disrupt the balance; Health Risk: microbes that have been frozen in the permafrost for millennia can come back to life after the thaw. About 3 units of radiation (in the ultraviolet portion of the spectrum) are absorbed by ozone and so warm the ozone layer. 4. Albedo of Mercury is much greater than the albedo of the Earth. April 24, 2020 in GEOGRAPHY, TNPSC, UPSC. Advection: The transfer of heat through horizontal movement of the air is called advection. Define briefly the concept – Ice–albedo feedback is a positive (exacerbating) feedback climate process where a change in the area of ice caps, glaciers, and sea ice alters the albedo and surface temperature of Earth. The average albedo of earth is 0.31 i.e. ; Ablation zone The lower portion of a glacier where there is a net annual loss of ice due to melting and sublimation. Reflection: The radiations are reflected back in the space by the surface and atmosphere of the earth. 10 months. UPSC; TNPSC; TEACHING; AFTER 12; _College Finder; _ENGINEERING-IIT; _MEDICAL-NEET; _LAW-CLAT; MAGME GURU APP; LATEST. Composition & Structure of Atmosphere 68-71 10. GEOGRAPHY TNPSC UPSC THE UNIVERSE MCQS SET 06. When the solar radiation passes through the atmosphere, some amount of it is reflected, scattered and absorbed. CLIMATOLOGY MCQS SET 09 by. Which one among the following statements is not correct? Magme Guru on. Clouds are the most important reflectors by far. The albedo value ranges from 0 to 1. This document is highly rated by UPSC students and has been viewed 20 times. Landforms 41-51 7. According to experts, greenhouse effect and reduced Earth’s Albedo effect are the prime causes of Global warming. Albedo of Earth – The reflected amount of radiation or insolation from clouds, snow, and ice-covered areas of earth is known as albedo. Having a good knowledge of environmental concepts can help in answering in a better way. The density of air … Along with the five permanent members – China, United States, Russia, the United Kingdom and France – there are 10 non-permanent members who are elected for a two-year term by the General Assembly. Magnetic axis is tilted at 11.5 degree approximate to the geographic axis of the earth. The total reflection of the incoming solar radiation is called albedo and is expressed in terms of the percentage of insolation. Geography terms and Definitions starting with A | UPSC – IAS. The radiant energy of the sun is transmitted in the form of: (a) short … 0 . Ice, especially with snow on top of it, has a high albedo: most sunlight hitting the surface bounces back towards space. 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