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erastovalidia [21]
3 years ago
7

During what event was the earth covered by 10% ice? How high were sea levels at this time?

Biology
1 answer:
kiruha [24]3 years ago
6 0

There are two distinct Cryogenian ice ages called Sturtian glaciation between 750 and 700 million years ago, followed by the Varanger (or Marinoan) glaciation, 660 to 635 million years ago which covered the earth ice. Also the Global sea level has fluctuated widely in the recent geologic past.

<u>Explanation:</u>

Cryosphere is the part of the earth’ surface where the land areas exits in the solid form  when the warming temperature low. The snow and ice covers the 10% of the earth permanently in the ratio of 60% in northern hemisphere and less than in snow in southern hemisphere.

Its is formed due to lesser warm temperature. snow and the ice covered on the surface it store the fresh water under the floating ice, most of the fresh water is present in the two major ice sheets Antarctica and Greenland.

Melting ice does not cause any impact on sea because it was already floating on the sea surface. If the temperature become warm, its melt on the ocean itself.

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During excessive hard work or sports, the respiratory system acts to provide sufficient oxygen for energy supply (ATP) - a process takes place in mitochondria. At the very beginning, the respiratory system is active. If the person doesn't intake sufficient water, he will feel tired because of heavy breathing that increases body temperature and affects metabolic reactions. A supply of water would help decrease the respiration need and so support other systems.

The nervous system (hypothalamus) regulates the body temperature which is necessary for metabolic reactions taking place within the body, i.e. homeostasis. During and after exercise, the water intake was not sufficient, this means that the hypothalamus would work to maintain the temperature as well as other metabolic mechanisms. In the case of less water intake, the nervous system would be in stress.

The circulatory system acts to transport blood and oxygen to all parts of the body. During sports activities, the oxygen supply would be high to maintain energy supply. This takes place with the combined action of the circulatory system and respiratory system. For optimal functioning, the circulatory system needs fluids (water) intake because sufficient water is already lost during sports.

The integumentary system is the system that directly protects the body from damages including dehydration. Therefore, in this case, it will be highly active.

The endocrine system consists of glands that produce hormones to control body metabolism. The body metabolism, as mentioned before, is driven through water availability. The reduced water in the body would also put the endocrine system under pressure.

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