Questions:
1. In km/hr, the value of this unit is 1.14 x 10-13. It translates to one micrometer per year, and is used in the earth sciences to measure the speed at which a surface becomes narrower or less thick due to erosion. What’s the unit called?
2. X is rising at 0.3 trillionths of a km around the world every hour. While this seems slow, it’s becoming faster thanks to global warming and researchers and lawmakers alike concerned that X will eventually pose great harm to countries everywhere with a shoreline. What is X?
3. In one billion years, Y will have moved 4.7 km away from the earth. If we work backwards, this means Y was once only 22,500 km away from the earth and over time moved to its position 4 lakh km away today. Name Y.
4. ______ is the world’s fastest growing woody plant and grows at 0.000014 metres every 24 hours. This rapidity has prompted scientists to suggest they might be good for afforestation and carbon sequestration. Fill in the blank.
5. In 1995, Archie set a world record (at the time) for being the fastest _____ by travelling a distance of 33 cm in just two minutes, at the world championship in Congham, UK. Fill in the blank.
Visual:
In the 20th century, the melting of parts of this glacier were responsible for 4% of the process in Q2. It’s also one of the world’s fastest glaciers at 4 mm/s. Name the island to which it’s ‘attached’.
Answers:
1. Bubnoff unit
2. Sea level
3. Moon
4. Bamboo
5. Snail
Visual: Greenland
Published – December 13, 2024 11:00 am IST
