Ответ:

1)To improve my fitness, I exercise every morning and do endurance exercises when I have free time.

2)I also have a few friends on the Internet, they live in another city , so we only communicate over the Internet

3)Of course, I believe that nuclear power plants are dangerous, they affect the environment, and they are also dangerous for people.

4)Russia borders 18 countries: Norway, Finland, Estonia, Latvia, Lithuania, Poland, Belarus, Ukraine, Georgia, Abkhazia, South Ossetia, Azerbaijan, Kazakhstan, China, Mongolia, North Korea, Japan and the United States. Maybe you didn't count the United States and Japan, because the borders are only Maritime, but there are only 18 countries, not 16.

5)The advantages of traveling by plane are that: it is more time-saving, you can travel across the sea, where there are no roads, as the plane moves through the air.

Объяснение: