1. If I were you, I wouldn't have a bath every day.
2 If we protect the environment, the world will become a better place to live in.
3 When ice melts, it becomes water.
4 Thousands of animals will lose their homes unless we stop global warming.
5 If you cycled to work, you would help to reduce air pollution.
6 If I were you, I would walk to work instead of driving.
7 Unless people care the environment, the amount of drinking water will decrease.
8 Thousands of creatures will dye unless we stop global warming.
9 If everyone recycled rubbish, it would help to reduce air pollution.
10 When the sun sets, it gets dark.
Jellyfish - the animals, which are all associated with something shapeless and extremely primitive, but their way of life and physiology is not as simple as it seems at first glance. The word "Medusa" usually implies animal from the class Scyphoid and representatives of the detachment Trailed of class Hydroid type Coelenterates. At the same time, in the scientific environment, this word has a wider interpretation zoologists indicate this term any mobile form coelenterates animals. Thus jellyfish are in close relationship with movable types coelenterates (siphonophorae, sea ships) and seat - corals, undigested, HYDR. In total there are more than 200 species of jellyfish.
27. It's no use crying over spilt milk.