Fauna

49. Loss of 20% of liquid for a person is fatal.
50. Depending on the climatic conditions, a person can do without food for up to two weeks, but one cannot live without water for less than a week.
51. When digesting protein food, water is also used by humans, so in extreme situations, when there is no access to water, it is better to give up meat.
52. The body reacts to dehydration in the same way as it does to stress, that is, the body's reserves are mobilized, which causes real stress.
53. Mostly we need one and a half to two liters of water per day.

30. Sea water freezes at a temperature of -1.91 ° ​​C.
31. When studying new planets, scientists first of all look for water.
32. On Jupiter, as on Earth, the weather depends on the circulation of water in the atmosphere.
33. Scientists have found ice on other planets of the solar system, as well as Jupiter's moon Europa, which is completely covered in ice.
34. The presence of ice is recorded in the nuclei of most comets. The assumption of an extraterrestrial origin of life on Earth is based on this fact.
35. Life on Earth appeared in water.

8. More than 70% of the Earth's surface is covered with water, but no more than 2% is suitable for drinking.
9. The main supply of fresh water is frozen in glaciers.
10. The fact that the Pacific Ocean is less salty than the Atlantic Ocean is also interesting.
11. 46.1% of the world's ocean water is contained in the Pacific, 29.9% in the Atlantic, 20.3% in the Indian and 3.7% in the Arctic Ocean.
12. Ice reserves on Earth are up to 30 million cubic kilometers and most of it is stored in the polar caps.