1. The days become shorter in winter and longer in summer.
2. The leaves fall down from the trees in autumn (or fall, т.к. одно и то же)
3. No, it's very unusual, if you see snow in June.
4. My favourite season is winter, because there are a lot of snow on this time.
5. The glass become green in summer and at the end of spring.
6. No, I can't feel it, but I can see, because I can see day and night.
7. The sky becomes dark at the evening and night.
8. The Sun keeps the Earth warm.
9. No, we can't, because the Earth will be very dark and cold.
10. Of course, we can find water in lakes, seas and oceans.
11. Yes, people consist of 70% of water.
12. Because the Sun is shining and it's very bright.
13. Because the stars are very far from the Earth.
14. The moon is smaller than stars.