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Doctors Medicines MCQs Q&A

  1. 1 only
  2. 2 only
  3. Both 1 and 2
  4. Neither 1 nor 2
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1 Answers

Option 4 : Neither 1 nor 2

The correct answer is Neither 1 nor 2.

Difference between High Clouds and Low Clouds

  • High clouds are often thin and do not reflect very much. They let lots of the Sun's warmth in. Low clouds are often quite thick and reflect lots of sunlight back into space.
  • The main difference between high and low clouds is that the high clouds are colder. This means that they radiate less energy into space than the lower, warmer clouds. Therefore, high clouds work to "trap" more energy than low clouds.
  • High clouds are not good at reflecting short waves. But, they are very good at blocking long waves. This also traps heat. Thus, high clouds will cause a warming of the Earth's surface. Hence, Statement 2 is not correct.
  • Low clouds are excellent reflectors. But, they don't stop the longwave energy from escaping to space. Therefore, low clouds help to cool the Earth. Hence, Statement 1 is not correct.
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    High Clouds

    • They can reach above 6000 metres or 20,000 feet.
    • They are also known as Cirrus Clouds.
    • They are usually thin and are made up of ice.
    • They often indicate fair weather and hence do not produce rain.

    Low Clouds

    • They lie below 6,500 feet, which means from the surface to 2,000 meters.
    • Low clouds are also known as Stratus Clouds.
    • They may appear dense, dark, and rainy (or snowy) and can also be cottony white clumps interspersed with blue sky.
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Related Questions

In the following question, the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/ passage and find out which of the four combinations is correct. 1. Jupiter has 2.5 times more mass than all the other planets of the solar system combined and is 11 times as large as Earth in diameter. P. Jupiter is so large that scientists believe it almost became a star: as the gases and dust contracted to the form the planet, Q. But there was not enough mass available to create the temperature needed to start a fusion reaction such as that of the Sun. R. Thus, Jupiter has been cooling down ever since.  S. gravitational forces created tremendous pressure and the temperature inside the core—as high as tens of thousands of degrees. 6. Even so, Jupiter radiates about as much heat as it receives from the Sun.?
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