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Science is a huge part of life and the nature revolves around science. Actually everything that exists have some scientific explanation, some have been discovered and some yet not but it is extremely difficult to keep up with everything. Therefore, here are some of the cool science facts which you didn’t know and after reading this, you will able to show off your peers about some extra knowledge.
Let’s make science interesting with these quick facts:
1. Do you know 20% of Earth’s oxygen is produced by the Amazon rainforest?
Our atmosphere consists of 78 percent nitrogen, 21 percent oxygen and 1 percent of other gases. Since a vast majority of living beings on Earth require oxygen to live barring plants and trees. The oxygen we inhale is converted into carbon dioxide and trees do the exact opposite. Now, the degrading level of trees in almost everywhere in the world, the Amazon rainforest covers 5.5 million square kilometres. Therefore, Amazon rainforest produces the most amount of Earth’s oxygen.
2. Chalk is made of trillions of microscopic plankton fossils
Coccolithophores are the tine single-celled algae which have lived in Earth’s oceans for 200 million years. As the sediments keep on depositing, the pressure compressed the coccoliths to form rock keeps on creating chalk deposits.
3. Do you Eiffel Tower grows 15 cm taller during summer?
Yes, Eiffel Tower grows 15 cm taller during summer because of the simple reason called thermal expansion. So, when a substance is heated, the particles move more and it takes up a larger volume thus, the phenomenon happens.
4. Polar bears are nearly undetectable by infrared cameras
If you are questioning in your head how can a huge animal be undetectable? The reason behind this weird fact is that thermal cameras or infrared cameras detect the heat lost by a subject. Since, polar bears are great at conserving heat, they keep themselves warm due to a thick layer of blubber under the skin. Thus, they are nearly undetectable through infrared cameras.
5. Stomach acid is as strong that it can dissolve stainless steel
The reason behind human beings’ digestion is because of the highly corrosive hydrochloric acid with a pH of 2 to 3. This acid is also subject to attacking your stomach lining to protect itself by secreting an alkali bicarbonate solution.
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Author: Srinanti Bagchi
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