ROUND-UP 1. Choose the right option. Ecology is a science that ____________________________ has no practical applications in everyday life has a limited field of application needs no contribution from other sciences is multidisciplinary 1. a. b. c. d. An ecosystem ____________________________ can be of any size is not affected by relations between individuals of the same species can only be terrestrial is not part of a biome 2. a. b. c. d. Air pollution affects ____________________________ human health climate precipitation all of the above 3. a. b. c. d. Climate change ____________________________ will have serious social, economic and political consequences is not connected to global warming has never been studied has become a matter of concern since the 1930s 4. a. b. c. d. Nuclear energy ____________________________ has no disadvantages produces waste which is dangerous to deal with is a valid alternative to fossil fuels produces toxic gases 5. a. b. c. d. Hydrogen is ____________________________ polluting largely used difficult to store and distribute not good for vehicles 6. a. b. c. d. 2. Answer the following questions. What are the objectives of ecological studies? ....................................................... 1. How can ecosystems be roughly divided? ....................................................... 2. What are the main forms of environmental pollution? ....................................................... 3. What long-term effects can global climate change lead to? ....................................................... 4. What are non-renewable energy sources? ....................................................... 5. What energy sources can be considered ‘environmentally-friendly’? Why? ....................................................... 6.