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An air cooler works on the simple principle of evaporation. It does not yield good results when humidity is high. On the contrary, the temperature of dry air can be dropped significantly through the phase transition of liquid water to water vapor (evaporation), which can cool air using much less energy than refrigeration.
Can we infer from this article that there is an immediate need of an international forum to help small island nations threatened by rising sea levels?
What happened to the cat?
Which one of the following is most similar in meaning to the word ‘robust’ as mentioned in the passage?
What was Shahid suffering from?
What does the phrase “under a common umbrella” mean?
What did the black dogs do when the author and his friends came closer to them?
Directions: Four statements are given below labelled 1), 2), 3), 4) and 5). Among these, four statements are in logical order and form a coherent parag...
Choose the word which is most nearly the same in meaning to the word ‘perennial’ as used in the passage.
Which of the following happened in Nepal in the 19th century?
Which of the following is likely to co-exist?