Consider the following statements regarding cyclones in India : 1. More cyclones occur in the Bay of Bengal than in the Arabian Sea. 2. On an average, 12 to 15 tropical cyclones form every year. 3. Tropical cyclones occur continuously throughout the year. Which of the statements given above is/are correct?
1 only
Statement 1 is correct: the Bay of Bengal experiences significantly more tropical cyclones than the Arabian Sea, due to its warmer sea-surface temperatures and funnel-shaped coastline.
Statement 2 is incorrect: on average only about 4 to 6 tropical cyclones form over the North Indian Ocean each year, not 12 to 15.
Statement 3 is incorrect: cyclones over the Indian region are seasonal, concentrated mainly in the pre-monsoon (April–June) and post-monsoon (October–December) periods, not occurring continuously throughout the year.
Hence, only statement 1 is correct.
Consider the following statements about a cloud form :
1. These are made up of ice crystals rather than droplets of water.
2. They are thin, stringy, white clouds that trail like feathers across the sky.
3. These clouds are formed at very high altitudes—normally between 6000 metres and 10000 metres.
Which one among the following cloud forms is described above?
Consider the following statements :
1. Many urban and suburban areas experience a higher temperature than surrounding rural areas known as urban heat islands.
2. The reduction in urban green cover and the increase of built-up hard surface is the only cause of urban heat island.
Which of the statements given above is/are correct?
Consider the following statements about anticyclones :
1. Anticyclones are high pressure systems.
2. Air in the centre of the system must be subsiding.
3. Anticyclones are characterized by converging winds.
How many of the above statements is/are correct?
Which one of the following is the correct sequence of layers as we move from the Earth’s surface upwards?
Which one of the following is a cold local wind?