ПОЖАЛУЙСТА!!!!СРОЧНО!!!ЗАВТРА УРОК!!!Для заполнения воздушных шаров используют газы, относительная плотность которых по воздуху менее единицы. Из перечня формул газов укажите пригодные для заполнения шаров газы: O2, H2, He, Cl2, CO2, N2, SO2

ПОЖАЛУЙСТА!!!!СРОЧНО!!!ЗАВТРА УРОК!!!Для заполнения воздушных шаров используют газы, относительная плотность которых по воздуху менее единицы. Из перечня формул газов укажите пригодные для заполнения шаров газы: O2, H2, He, Cl2, CO2, N2, SO2
- Предмет:
  Химия
- Автор:
  adriannaferguson
- 6 лет назад

Ответы 1

H2, He, N2 их относительная плотность по воздуху меньше единицы
- Автор:
  bunkyfernandez
- 6 лет назад
- 0
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перевод
1. Read and translate the text:

Tourism

Tourism is a travel from a person’s usual place of

residence for a period longer than 24 hours usually for pleasure

or recreation and to different places of rest, called destinations.

Tourism also involves people travelling for business or health,

or to visit friends and relatives.

The person travelling is a tourist. The basic principle in

tourism is catering to the needs of tourists and satisfying of all

their wishes and requests.

7

The tourist destination is a place or area to which

tourists travel. It may be a resort, or a big city. In summer it

may be a resort on a shore of a sea or an ocean as all tourists

are likely to seek for the three “s”: sun, sea and sand.

Tourism may be of the two main types: internal and

international. When tourists travel between two or more

countries, this tourism is called international. When they travel

within the same country, this is internal or domestic (home)

tourism.

In any season of the year tourists go on short travels to

different destinations. Such trips for less than 24 hours are

called excursions. A person who takes such a trip is called an

excursionist. The length of his trip distinguishes an excursionist

from a tourist, who is away from his usual place of residence

for more than 24 hours.

When travelling, a tourist needs a place to have a rest.

Such places are called accommodations. There a traveler may

obtain a bed. These places are hotels, motels, inns, camping

grounds, hostels and so on and so forth. In a hotel a person

travelling may also obtain food and drink. These are catering

services provided by restaurants and bars.

There are some very important attractions in tourism.

The first one is the multiplier effect of the tourist dollar. Money

paid for wages or in other ways is spent not once, but

sometimes several times for other items in the economy – the

food that hotel employees eat at home, the house in which they

live, or the durable goods that they buy.

Besides, in many countries tourism is a very important

part of economics as it is rather labour-intensive. It requires a

great number of workers in proportion to the number of people

served in tourism.
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