Related InterviewSolutions

• Which of the following can be considered as spontaneous combustion?A. Burning of LPGB. Burning of magnesium ribbonC. Burning of camphorD. Burning of white phosporus
• Which of the following phenomena is an effect of acid rain ?A. An increase in frequency of floodsB. Unseasonal rainfallsC. Harmuful affects by UV raysD. Death of aquatic animals
• Which of the following distinguishes respiration form combustion?A. Requirement of oxygen.B. Exothermic nature of reactions.C. Energy can be released only in the form of heat and not light.D. Can take place at any temperauture.
• Golbal warming is mainly due toA. reradiation of U.V. rays by `CO_(2)andH_(2)O`.B. reradiation of I.R. rays by `CO_(2)andH_(2)O`.C. reradiation of I.R. rays by`O_(2)andN_(2)`.D. reradiation of U.V. rays by `O_(2)andN_(2)`
• What are the effects of oxides of sulphur and nitrogen on the atmosphere?
• Which of the following minerals does not contain oxygen?A. SilicatesB. CarbonatesC. PyritesD. None of these
• Tropospheric atmosphere is turbulent. Which of the following reasons can be attributed to this?A. Convectional current of air rises up due to high temperature in lower layers of the earth.B. Temperature changes result in change in air pressure.C. More effect of centrifugal force is more in this layer.D. None of these
• Identify the substance which continue to burn in an atmosphere of ` N_(2)`.A. FeB. MgC. CuD. W
• An increase in the levels of `CO_(2)` in the atmosphere increases the temperature of the earht.
• Arrange the layers of the atmosphere as per the following terms related in a sequence order respectively. Inversion layer, convertion currents, absorbs harmful radiations and burning up of meteorites (a) Troposphere (b) Stratophere ( c) Exophere (d) Mesosphere (e ) IonophereA. decabB. abcedC. baecdD. abdce