Read and complete the sentences with the words. life, needs, ecosystem, changed, future, invented, technology, sources. Human environment is a man-maden- inven vironment. it was (1) by humans for their beca needs. before (2) appeared, humans lived in the natural environment. they had environment-friendly life. with time, their (3)... grew and grew. Humans learnst New ways to change their environment for their needs. They learnt to grow crops and animals, and build houses. They (4)... the wheel, money, trade and business. Transportation became faster. It became possible after they had invented new techlonogies. Communication became easier and fast across the world. They formed a man-made (5)... We need a balance between the natural and man-made environment. If we use the natural (6)... wisely, we can have a healthy balance. We should use our resources wisely and learn to save them. Natural resources like wood, minerals, water and air are important for (7)... . If we do not use them wisely, we may run out of them one Day. We should think about our (8)

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armanpozitiva

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1. listen! my friend …the song. c) is singing 2. i … some problems at school. a) have 3. they … to visit galleries and museums. c) like 4. where is mum? she … c) is cooking 5. i can … a lot of girls in the street. c) see 6. his brother … the piano very well. b) plays 10) he … his lunch now. b) is cooking 8. look! they … to the library now. b) are going