Поставите предлоги by, about, on, in, from, up, to, down.

Solution A - recycle paper, metal and glass

a everyone / recycle paper / companies / not cut down so many trees

If everyone recycles paper, companies won't cut down so many trees.

b everyone / recycle metal and glass / we not waste valuable resources

If everyone recycles metal and glass, we won’t waste valuable resources

c everyone / recycle paper, metal and glass / we not produce so much rubbish

If everyone  recycles paper, metal and glass , we won’t produce so much rubbish

Solution B - turn off lights, don't drive so much, insulate your house

d everyone / turn off unwanted lights / save a lot of electricity

If everyone turns off unwanted lights we save a lot of electricity.

e everyone / walk or cycle / not waste so much oil and petrol

If everyone walks or cycles, we won’t waste so much oil and petrol.

f everyone / insulate their houses / not waste so much energy for heating

If everyone  insulates their houses, we won’t waste so much energy for heating.

Solution C-use renewable energy

g countries use more wind and water power, not depend so much on power stations

If countries uses more wind and water power, we won’t depend so much on power stations

h countries use power stations less, cause less air pollution​

If countries uses power stations less, it will cause less air pollution​

Объяснение:

 

Yerevan - the capital of Armenia.

Yerevan is the capital of Armenia. 1,1 mln people live in Yerevan and it is the largest city in Armenia.

Yerevan is the most important transport crossroad, as well as political, economic, cultural and scientific center. The city has 2 airports and Yerevan had a metro since 1981.

The name of Yerevan originated from Urartian Erebuni fortress before it was called Yerevan city. Yerevan is more then 2800 year old. It has been the capital since 1918 and is the 12th in the history of Armenia.

Yerevan is located from 900 to 1300 meters above the sea level. The climate is mild. Hot dry summers and relatively short but cold winters are typical for Yerevan. It is divided into 2 parts by the Hrazdan River.

Ереван- столица Армении.

Ереван является столицей Армении. 1,1 млн. людей живут в Ереване, и это самый крупный город в Армении.

Ереван является важнейшим транспортным перекрестком, а также политическим, экономическим, культурным и научным центром. В городе есть два аэропорта и метро с 1981 года.

Название Ереван происходит от урартской крепости Эребуни. Ереванe более чем 2800 лет. Он был столицей страны начиная с 1918 года и является 12-й в истории Армении.

Ереван находится от 900 до 1300 метров над уровнем моря. Климат мягкий. Жаркое сухое лето и относительно короткая, но холодная зима характерны для Еревана. Он разделен на 2 части по реке Раздан.