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3. A RDBMS is a database management system that is based on th

3. A RDBMS is a database management system that is based on th

  1. {"4. Three popular DBMS software are Microsoft Access, OpenOffice","5. A Primary Key is a unique value that identifies a row in a table.","6. Composite Key is a combination of one or more columns.","7. A table is a set of data elements that is organized using a model horizontal rows."}
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SOLAR RADIATION, HEAT BALANCE AND TEMPERATURE earth after being heated itself becomes a the earth surface. Roughly 35 units are radiating body and it radiates energy to the reflected back to space even before reaching atmosphere in long wave form. This energy the earths surface. Of these, 27 units are heats up the atmosphere from below. This reflected back from the top of the clouds and process is known as terrestrial radiation. 2 units from the snow and ice-covered areas The long wave radiation is absorbed by of the earth. The reflected amount of radiation the atmospheric gases particularly by carbon is called the albedo of the earth. dioxde and the other green house gases. Thus. The remaining 65 units are absorbed. the atmosphere is indirectly heated by the 14 units within the atmosphere and 51 units earth's radiation. by the earth's surface. The earth radiates The atmosphere in turn radiates and back 51 units in the form of terrestrial transmits heat to the space. Finally the amount radiation. Of these, 17 units are radiated of heat received from the sun is returned to to space directly and the remaining 34 units space, thereby maintaining constant temperature are absorbed by the atmosphere 6 units at the earths surface and in the atmosphere. absorbed directly by the atmosphere, 9 units Heat Budget of the Planet Earth_ through convection and turbulence and 19 Figure depicts the heat budget of the units through latent heat of condensation). planet earth. The earth as a whole does not 48 units absorbed by the atmosphere accumulate or loose heat. It maintains not units from insolation units from temperature. This can happen only if terrestrial radiation) are also radiated back amount of heat recelved in the forme space. Thus, the total radiation insolation equals the amount lost by form of returning from the earth and the atmosphere through terrestrial radiation by the earth respectively is units which Consider that the insolation recelved at balance the total of 65 units recelved from the top of the atmosphere is 100 per cent. the sun. This is termed the heat budget or the top of the atmosphere is 100 per cent. heat balance of the earth. While passing through the atmosphere some This explains, why the earth nelther warms amount of energy is reflected. scattered and up nor cools down despite the huge transfer of absorbed. Only the remaining part reaches heat that takes place. Figure 9.2 : Heat budget of the earth
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Question Text
3. A RDBMS is a database management system that is based on th
Updated OnSep 15, 2022
TopicAll topics
SubjectMental ability
ClassClass 12
Answer Type Video solution: 1
Upvotes148
Avg. Video Duration13 min