I. выберите правильный ответ. запишите «цифра – буква». 1). 70% of the surface of the earth is covered ….. water. a) in; b) with; c) under. 2). ….. is threatening the lives of animals and plants. a) dirty air; b) pollution; c) poisonous air 3). many people are interested in watching …. a) wildlife; b) wilderness; c) wilds. 4). an earthquake is a …… event. a) physical; b) natural; c) real 5). tigers ….because hunters kill them in order to sell their skins. a) run the risk; b) are insecure; c) are in danger