Climatology

With reference to the climate of Andaman and Nicobar Islands, which of the following statements is/are correct ? 1. The climate can be defined as a humid, tropical coastal climate. 2. It receives rainfall from both South-west monsoon and North-east monsoon. 3. Maximum precipitation is between December and May. Select the answer using the code given below :

Consider the following statements: Statement I: The amount of dust particles in the atmosphere is more in subtropical and temperate areas than in equatorial and polar regions. Statement II: Subtropical and temperate areas have less dry winds. Which one of the following is correct in respect of the above statements?

Consider the following statements: Statement I: In January, in the Northern Hemisphere, the isotherms bend equatorward while crossing the landmasses, and poleward while crossing the oceans. Statement II: In January, the air over the oceans is warmer than that over the landmasses in the Northern Hemisphere. Which one of the following is correct in respect of the above statements?

Consider the following statements: I. Without the atmosphere, temperature would be well below freezing point everywhere on the Earth's surface. II. Heat absorbed and trapped by the atmosphere maintains our planet's average temperature. III. Atmosphere's gases, like carbon dioxide, are particularly good at absorbing and trapping radiation. Which of the statements given above are correct?

Consider the following statements: Statement-I: The atmosphere is heated more by incoming solar radiation than by terrestrial radiation. Statement-II: Carbon dioxide and other greenhouse gases in the atmosphere are good absorbers of long wave radiation. Which one of the following is correct in respect of the above statements?

Consider the following statements: Statement-I: Thickness of the troposphere at the equator is much greater as compared to poles. Statement-II: At the equator, heat is transported to great heights by strong convectional currents. Which one of the following is correct in respect of the above statements?

Which of the following is/are correct inference/inferences from isothermal maps in the month of January?. 1. The isotherms deviate to the north over the ocean and to the south over the continent. 2. The presence of cold ocean currents, Gulf Stream and North Atlantic Drift make the North Atlantic Ocean colder and the isotherms bend towards the north. Select the answer using the code given below :

With reference to “water vapour”, which of the following statements is/are correct? 1. It is a gas, the amount of which decreases with altitude. 2. Its percentage is maximum at the poles. Select the answer using the code given below :

Consider the following description: 1. Annual and daily range of temperatures is low. 2. Precipitation occurs throughout the year. 3. Precipitation varies between 50 cm - 250 cm. What is this type of climate?

With reference to “Coriolis force”, which of the following statements is/are correct? 1. It increases with increase in wind velocity. 2. It is maximum at the poles and is absent at the equator. Select the answer using the code given below :

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

Consider the following statements: Statement-I:The temperature contrast between continents and oceans is greater during summer than in winter. Statement-II:The specific heat of water is more than that of land surface. Which one of the following is correct in respect of the above statements?

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 infrared radiation emanating from the Earth’s surface and thus cause warming effect. Which of the statements given above is/are correct?

With reference to Ocean Mean Temperature (OMT), which of the following statements is/are correct? 1. OMT is measured up to a depth of 26°C isotherm which is 129 meters in the south-western Indian Ocean during January – March. 2. OMT collected during January – March can be used in assessing whether the amount of rainfall in monsoon will be less or more than a certain long-term mean. Select the correct answer using the code given below:

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 eye of a cyclone is nearly 10°C lesser than that of the surroundings. Which of the statements given above is/are correct?

Why are dewdrops not formed on a cloudy night?

With reference to ‘Indian Ocean Dipole (IOD)’ sometimes mentioned in the news while forecasting Indian monsoon, which of the following statements is/are correct? 1. IOD phenomenon is characterised by a difference in sea surface temperature between tropical Western Indian Ocean and tropical Eastern Pacific Ocean. 2. An IOD phenomenon can influence an El Nino’s impact on the monsoon. Select the correct answer using the code given below:

In the South Atlantic and South-Eastern Pacific regions in tropical latitudes, cyclone does not originate. What is the reason?

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 air masses that cause winter rains in North-Western region of India are part of westerlies. Which of the statements given above is/are correct?

"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 form, then rain comes with thunder and lightning. But rain is soon over." Which of the following regions is described in the above passage?

The seasonal reversal of winds is the typical characteristic of

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 between land and water 2. Variation in altitude between continents and oceans 3. Presence of strong winds in the interior 4. Heavy rains in the interior as compared to coasts Select the correct answer using the codes given below.

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 :

The increasing amount of carbon dioxide in the air is slowly raising the temperature of the atmosphere, because it absorbs

Consider the following statements : 1. The duration of the monsoon decreases from southern India to northern India. 2. The amount of annual rainfall in the northern plains of India decreases from east to west. Which of the statements given above is/are correct?

Which one of the following is the characteristic climate of the Tropical Savannah Region?

The formation of ozone hole in the Antarctic region has been a cause of concern. What could be the reason for the formation of this hole?

La Nina is suspected to have caused recent floods in Australia. How is La Nina different from El Nino ? 1. La Nina is characterised by unusually cold ocean temperature in equatorial Indian Ocean whereas El Nino is characterised by unusually warm ocean temperature in the equatorial Pacific Ocean. 2. El Nino has adverse effect on south-west monsoon of India, but La Nina has no effect on monsoon climate. Which of the statements given above is/are correct ?

Westerlies in southern hemisphere are stronger and persistent than in northern hemisphere. Why? 1. Southern hemisphere has less landmass as compared to northern hemisphere. 2. Coriolis force is higher in southern hemisphere as compared to northern hemisphere Which of the statements given above is/are correct?

What could be the main reason/reasons for the formation of African and Eurasian desert belt? 1. It is located in the sub-tropical high pressure cells. 2. It is under the influence of warm ocean currents. Which of the statements given above is/are correct in this context?

The jet aircrafts fly very easily and smoothly in the lower stratosphere. What could be the appropriate explanation? 1. There are no clouds or water vapour in the lower stratosphere. 2. There are no vertical winds in the lower stratosphere. Which of the statements given above is/are correct in this context?