Q39. Normally, the temperature decreases with the increase in height from the Earth’s surface, because : 1. The atmosphere can be heated upwards only from the Earth’s surface 2. There is more moisture in the upper atmosphere. 3. The air is less dense in the upper atmosphere. Select the correct answer using the codes given below:

Consider the following statements : Statement-I : The atmosphere is heated more by incoming solar radiation than by terrestrial radiation. Statement-II : Carbon

Consider the following statements : 1. High clouds primarily reflect solar radiation and cool the surface of the Earth. 2. Low clouds have a high absorption of

Consider the following statements: A person in a spaceship located half way between the earth and the sun will notice that the: (1) The sky is jet black. (2) st

With reference to the Earth’s atmosphere, which one of the following statements is correct?

Consider the following statements : Statement-I : Thickness of the troposphere at the equator is much greater as compared to poles. Statement-II : At the equato

The annual range of temperature in the interior of the continents is high as compared to coastal areas. What is/are the reason/reasons ? 1. Thermal difference b

During a thunderstorm, the thunder in the skies is produced by the : 1. Meeting of cumulonimbus clouds in the sky. 2. Lightning that separates the nimbus clouds

Consider the following natural phenomena: 1. Terrestrial heating 2. Reflection of light 3. Refraction of light 4. Diffraction of light Due to which of these ph

Human activities in the recent past have caused the increased concentration of carbon dioxide in the atmosphere, but a lot of it does not remain in the lower at

Consider the following climatic and geographical phenomena : 1. Condensation 2. High temperature and humidity 3. Orography 4. Vertical wind Thunder cloud develo

Consider the following statements: 1. The Earth’s magnetic field has reversed every few hundred thousand years. 2. When the Earth was created more than 4000 mil

Consider the following factors: 1. Rotation of the Earth 2. Air pressure and wind 3. Density of ocean water 4. Revolution of the Earth Which of the above factor

Consider the following which can be found in the ambient atmosphere: 1. Soot 2. Sulphur hexafluoride 3. Water vapour Which of the above contribute to the warmi

Consider the following statements : Statement-I: The temperature contrast between continents and oceans is greater during summer than in winter. Statement-II: T

Consider the following statements : Statement-I : The soil in tropical rain forests is rich in nutrients. Statement-II : The high temperature and moisture of tr

Consider the following statements : 1. Jet streams occur in the Northern Hemisphere only. 2. Only some cyclones develop an eye. 3. The temperature inside the ey

In a pressure cooker, the temperature at which the food is cooked depends mainly upon which of the following? 1. Area of the hole in the lid 2. Temperature of t

Why are dewdrops not formed on a cloudy night? (a) Clouds absorb the radiation released from the Earth’s surface. (b) Clouds reflect back the Earth’s

In the South Atlantic and South-Eastern Pacific regions in tropical latitudes, cyclones do not originate. What is the reason ? (a) Sea surface tempera

Consider the following statements : 1. The winds which blow between 30°N and 60°S latitudes throughout the year are known as westerlies. 2. The moist

“Each day is more or less the same, the morning is clear and bright with a sea breeze; as the Sun climbs high in the sky, heat mounts up, dark clouds

The seasonal reversal of winds is the typical characteristic of :

Westerlies in the southern hemisphere are stronger and persistent than in the northern hemisphere. Why? 1. Southern hemisphere has less landmass as co

The jet aircraft fly very easily and smoothly in the lower stratosphere. What could be the appropriate explanation? 1. There are no clouds or water va

Which one of the following reflects back more sunlight as compared to the other three ?