Fill in the correct words endangered,prevent,task,climates,release,expert,extinct,warming,changed,make. 1)Tropical..................are

1) Tropical climates are hot and humid. 2) The heavy snowfall may prevent us from going out. 3) Bringing up children is a difficult task. 4) Global warming affects the sea level. 5) That scientist is an expert on fossil fuels. 6) Something has to be done before more animals and plants become extinct. 7) Cars release fumes and pollute the atmosphere. 8) He promised to come but then he changed his mind. 9) We can all make a difference to the environment. 10) Gorillas are an endangered species.