5,4•0,8+0,08 помогите решить - №16042406

5,4•0,8+0,08 помогите решить
- Предмет:
  Математика
- Автор:
  ayana
- 6 лет назад

Ответы 2

*значение находится в скобках
- Автор:
  sutton76
- 6 лет назад
- 0
там вместо неизвестное слово значение
- Автор:
  ali35
- 6 лет назад
- 0
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Аватар пользователя oksanasinotova Oksanasinotova86 б
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Пожалуйста помогите перевести текст.
Earth’s Most Precious Resource

Over the last 300 years, world population has increased sevenfold, but water
use has increased by 35 times. Since 1950, the amount of annually renewable
fresh water available per human being has fallen by more than half.

While domestic users in rich countries tend to be wasteful in their use of water, regarding it as essentially free and plentiful, they play only a small part in total water use. On the other hand, the quality of water needed for domestic use is much higher than that needed for industry or farming.

Although 70% of the Earth is covered by seawater and about 3% by ice, neither of these is easily transformed into usable water. Less than 1% of the Earth’s total water resources are usable for drinking, farming or industry.

As a general rule, 80 litres of water per person a day are enough for a reasonable quality of life, but the regional differences are considerable. An American uses 400 litres, while an inhabitant of Burundi may have to survive on 10 litres or less.

Consumption is much higher where pipelines are laid than in regions where water has to be carried from a well. Thus the provision of piped water services – greatly increases water use.

It is difficult to establish precise figures for safe drinking water, but it is thought that 1.3 billion people worldwide do not have this basic service. Not surprisingly, the problem is much worse in rural areas than in towns. Dirty water is the world’s biggest health risk. The World Health Organization (WHO) estimated that 10 million people died annually from polluted drinking water from the beginning of the 1990s.

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What does WHO mean?

How much has water use increased?

What did WHO estimate?

What is the Earth most precious resource?
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How much to ban the user?

1 hour 1 day 100 years