UNIT-18

Ex 10
1. Trees are being cut down. Consequently, many species will become extinct.
2. People in cities breathe exhaust fumes every day. As a consequence, many of the develop breathing problems.
3. Industrial waste is dumped into the sea. As a result, fish die.
4. People drop litter in the streets. Therefore, people get diseases.
5. Most factories do not use filters. As a result the air gets dirty.
Ex 12
1. We should stop cutting down trees so that animals won’t lose their natural habitats.
2. We should make wildlife parks to protect animals from extinction.
3. We should plant more trees so that we will have more oxygen.
4. We should clean up the litter in cities so that we won’t catch diseases from it.
5. We should find clean forms of energy to save the planet.
Ex 13
1d 2 a 3c 4e 5d
1. Governments should improve public transport so that people won’t have to use cars to get around.
2. People should get involved in recycling schemes so that there will be less rubbish to pollute the environment.
3. We should ban cars from city centres to make the streets cleaner, safer and quieter.
4. Governments should force factories to put filters on chimneys so that the harmful gases won’t be able to pollute the atmosphere.
5. We should stop using the products of companies whose factories cause pollution to force them to use environmentally friendly production methods.