1. Рeople used stone mirrors in Turkey 8000 years ago.
2. There were metal mirrors in China 4,000 years ago.
3. In 1835 Justus von Liebig, a German chemist invented the modern mirror.
4. Modern glass mirrors have silver at the back.
Объяснение:
1. Люди пользовались (полированными) каменными зеркалами в Турции 8000 лет назад.
2. В Китае 4000 лет назад были (медные) металлические зеркала.
3. В 1835 году немецкий химик Юстус фон Либих изобрел современное зеркало.
4. Современные стеклянные зеркала имеют серебряное покрытие с обратной стороны.
если нужно на английском то вот
Объяснение:
There are a lot of planets in our galaxy, one of them is a planet called MARS. Many people think that there is life on Mars, while others believe the opposite. But there are also people who think that the atmosphere of Mars collapsed and people settled in the dungeons. As for me, I would love to fly to Mars, as I really love astronomy. I don't want to see what kind of soil there is, what kind of relief there is, and I would have met with aliens. I made friends with them and talked about life on earth. About the seas, about rivers, about lakes, continents, mountains, etc. Having talked with them, I would invite them to visit Earth, but first they asked to show me from the planet, put me in a flying saucer and showed all the beauties of their planet ... Then I went home and told everyone about my new friends, of course, no one believed me, but I know that we will definitely see you again.
Тут написано про марс , что бы ты там делал(а)
а так можешь дополнить типо кого ты хочешь взять с собой , например родителей или друзей
и пояснить почему: например : с ними мне всегда весело , и т.д
Dear Ben,
Thank you very much for your letter. It's nice to hear from you again. I'm sad for you that you have quarreled with your mum. You shouldn't be influenced by your friends next time.
You've asked me whether my friends make me do something bad. All of my current friends are very nice people, they have never influenced on me badly. That is why I am in a good relationships with them, I really appreciate our friendship. Anyway, about two years ago I had one guy with whom I'd been spending a lot of time. And once he was insisting on me to begin smoking, but I firmly refused. We quarreled and after that we stopped to communicate with each other. As for my free time, I like doing some active sports. For example, I go biking with my family, we're used to go to the park and there we have some picnic. We play tennis, eat, chat and have a great time in general .
Tell me about your exam. What subject is it? How do you usually prepare for your exams? What will you do after you pass it?
That's all for now. I'll be waiting for another letter from you.
Best wishes,
имя
Объяснение: