Question

Q. 4) Write short notes:
1) Bleaching of coral reefs
2) Flash floods
3) Tools to study Paleoclimatolgy
4) Greenhouse gases​

Answer 1

Answer:

HEY

HERE IS YOUR ANSWER

1》 BLEACHING OF CORAL REEFS

When water is too warm, corals will expel the algae (zooxanthellae) living in their tissues causing the coral to turn completely white. This is called coral bleaching. When a coral bleaches, it is not dead. ... In 2005, the U.S. lost half of its coral reefs in the Caribbean in one year due to a massive bleaching event.

2》 FLASH OF FLOODS

Flash floods are a quick and sudden

flood that unusually occured in drt velly

Flash floods may occur after the collapse of a natural ice or debris dam, or a human structure such as a man-made dam, as occurred before the Johnstown Flood of 1889.

3》Tool TO STUDY PALECLIMATOLGY

Paleoclimatology is the study of past climates. Since it is not possible to go back in time to see what climates were like, scientists use imprints created during past climate, known as proxies, to interpret paleoclimate. Organisms, such as diatoms, forams, and coral serve as useful climate proxies.

4》 GREENHOUSE GASES

Gases in the atmosphere, such as carbon dioxide, trap heat just like the glass roof of a greenhouse. ... Earth's surface warms up in the sunlight. At night, Earth's surface cools, releasing heat back into the air. But some of the heat is trapped by the greenhouse gases in the atmosphere.

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