A. Combustion with air
B. Gravitational pull by earth
C. Friction with earth’s atmosphere
D. Loss in weight of the satellite
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Related Mcqs:
- The density of the gases (present in air) decreases with increasing altitude to such an extent, that about 70% of the mass of atmospheric air is found in the lower 5 km. of the atmosphere. This lower region of atmosphere is called the_________________?
- A. Ionosphere B. Troposphere C. Stratosphere D. None of these...
- Presence of carbon monoxide in atmosphere produced by decomposition of chlorophyll and haemoglobin breakdown of some animals, beyond TLV (>50 ppm) ?
- A. Acts as a green house gas thereby raising earth’s temperature B. Causes asphyxia C. Causes increase in sea level D. Enhances the green house effect...
- A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of _____________ high above earth’s atmosphere, which absorbs it?
- A. Hydrogen B. Carbon dioxide C. Ozone D. None of these...
- The lowest layer of atmosphere is known as the_____________________?
- A. Stratosphere B. Troposphere C. Ionosphere D. None of these...
- Which of the following is not a source of ozone emission in the atmosphere?
- A. Refrigerators B. Xerox machines C. Dermatological photo-therapy equipments D. High voltage electrical equipments...
- The maximum CO2 is emitted into the atmosphere by_________________?
- A. Combustion B. Urea C. Biomass burning D. Trees...
- The earth’s atmosphere is an envelope of gases present upto a height of about ______________ kms?
- A. 10 B. 200 C. 1000 D. 2000...
- Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes_________________?
- A. Paralysis of muscles & loss of appetite B. Nervous depression C. Gastritis and diarrhea D. All A., B. and C....
- Oceans act as sinks for atmospheric gases including carbon dioxide whose concentration in the atmosphere is increased by the_______________?
- A. Forestation B. Rain C. Green house effect D. Vegetation...
- Osmotic pressure exerted by a solution prepared by dissolving one gram mole of a solute in 22.4 litres of a solvent at 0°C will be _______________ atmosphere?
- A. 0.5 B. 1 C. 1.5 D. 2...
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