SSC: Para Jumble Quiz: 28.02.2021
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Q. Reefs supply millions of people with economic and environmental services.
R. The decline of coral reefs worldwide calls for quantifying the damage, identifying the causes, and suggesting solutions.
S. Yet precisely such recreational and commercial human activities, coupled with growing human coastal populations, pose key threats to reefs.
Q. But can electrification help cut emissions from that other carbon-intensive form of passenger transport, flying?
R. The plan is for all citizens to be driving electric or hybrid-electric cars, or – better still – riding bicycles.
S. The UK government plans to ban the sale of new conventional petrol and diesel cars by 2040.
Q. A presumed sensitivity of roaches and rodents to frequencies in the 40-kilohertz region has led to the manufacture of “pest controllers”.
R. Ultrasonics are vibrations of frequencies greater than the upper limit of the audible range for humans—that is, greater than about 20 kilohertz.
S. They emit loud sounds in that frequency range to drive the pests away, but they do not appear to work as advertised.
Q. Periscope is an optical instrument that is used in land and sea warfare, submarine navigation.
R. It enables an observer to see his surroundings while remaining undercover, behind armor or submerged.
S. The first deflects it down through a vertical tube, the second diverts it horizontally so that the scene can be viewed conveniently.
Q. Although achieving poor grades at school, his early fascination with militarism saw him join the Royal Cavalry in 1895.
R. Churchill was active both in administrative and diplomatic functions in prosecuting the British war effort.
S. Some of his most memorable speeches were given in this period and are credited with stimulating British morale during periods of great hardship.
Q. To kill time, they started talking.
R. Once upon a time, a man and a lion were journeying together.
S. Soon the argument heated up and there was a fear of a fight.
Q. There was once a traveler who was walking from a village in the mountains to a village in the valley.
R. He stopped and said to the monk, “I’m on my way to the village in the valley, can you tell me what it’s like?”
S. The monk looked up from his labour and asked the man where he had come from.
Q. He took the precious object, showed it to the master, and asked him, is this a genuine diamond?
R. One day, a disciple found a glittering object on the road.
S. He instructed the disciple, go to the library, and read all about diamonds.
A) There are many gadgets that are operated by a remote control and contain a silicon chip.
B) This produces an infra-red beam, made up of electromagnetic waves.
C) When a button is pressed on the remote control, the chip sets off an electronic vibration.
D) The beam carries a coded signal for operating the systems.
A) It is called the atmosphere.
B) All parts of the earth are surrounded by air.
C) Living beings breathe in and breathe out the air all the time.
D) This process is called respiration.
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