5. In remote regions.the air is pure and the crops are free of insecticides. (poison) 6. Habitat poses the greatest threat to wild animals. (lose) 7. The students are having a field trip to Cat Ba Park. (nation) 8. Camel's habitat is the deserts across Asia and Africa (nature) 9. Our encourages each household to practise the 3Rs. (neighbour) 10. Water pollution can lead to the of aquatic plants and animals. (die) Preposition 1. Water pollution can be harmful at / to fish and animals that live along the river. 2. Using drinking water to water the garden is a waste from I of natural resources! 3. Ways must be found to prevent the polsonous gases on / from polluting the air. 4. Textile factories dump tonnes of toxic waste into / at the Citarum River. 5. She's come up to I with amazing new ideas to help protect the environment. 6. Noise pollution can have harmful effects on / in human health. 7. Toxic substances from factories are unsafe for I with the ecosystem. 8. Cat Tien National Park is home in I to some endangered monkeys 9. The river has been polluted with I from toxic waste from local factories. 10. Children should be aware at / of the environmental issues we're facing Writing 1. It's unsafe for humans and animals to drink polluted water. Polluted water discrimination Con Dao National small islands There Because from the meeting, she didn't know the Because of Many endangered marine species live in the ocean The ocean is home 5. We need to reduce our plastic waste, otherwise we'll threaten our own existence. If we Countries Earth Hour to raise awareness of saving energy. Because countries want 7. The campers will pick up all the rubbish before they leave the campsite. After the campers 8. Air pollution deaths will double by 2050 if nations don't act. Unless Because the world's temperatures rise. the Arctic keeps losing its ice. The world's 10. Unless we reduce our carbon footprint, global warming will destroy the ecosystem. If 1. We must conserve water.Otherwise we will face serious water shortages. (If) 2. The weather was awful. We didn't enjoy our camping holiday. (because of) 3. Plastic bags are non-biodegradable. They will remain in the environment for many years. (Because) __

Question

5. In remote regions.the air is pure and the crops are free of insecticides. (poison) 6. Habitat poses the greatest threat to wild animals. (lose) 7. The students are having a field trip to Cat Ba Park. (nation) 8. Camel's habitat is the deserts across Asia and Africa (nature) 9. Our encourages each household to practise the 3Rs. (neighbour) 10. Water pollution can lead to the of aquatic plants and animals. (die) Preposition 1. Water pollution can be harmful at / to fish and animals that live along the river. 2. Using drinking water to water the garden is a waste from I of natural resources! 3. Ways must be found to prevent the polsonous gases on / from polluting the air. 4. Textile factories dump tonnes of toxic waste into / at the Citarum River. 5. She's come up to I with amazing new ideas to help protect the environment. 6. Noise pollution can have harmful effects on / in human health. 7. Toxic substances from factories are unsafe for I with the ecosystem. 8. Cat Tien National Park is home in I to some endangered monkeys 9. The river has been polluted with I from toxic waste from local factories. 10. Children should be aware at / of the environmental issues we're facing Writing 1. It's unsafe for humans and animals to drink polluted water. Polluted water discrimination Con Dao National small islands There Because from the meeting, she didn't know the Because of Many endangered marine species live in the ocean The ocean is home 5. We need to reduce our plastic waste, otherwise we'll threaten our own existence. If we Countries Earth Hour to raise awareness of saving energy. Because countries want 7. The campers will pick up all the rubbish before they leave the campsite. After the campers 8. Air pollution deaths will double by 2050 if nations don't act. Unless Because the world's temperatures rise. the Arctic keeps losing its ice. The world's 10. Unless we reduce our carbon footprint, global warming will destroy the ecosystem. If 1. We must conserve water.Otherwise we will face serious water shortages. (If) 2. The weather was awful. We didn't enjoy our camping holiday. (because of) 3. Plastic bags are non-biodegradable. They will remain in the environment for many years. (Because) __

Answer 1

## Multiple Choice Answers:5. **insecticides** (poison) - Insecticides are poisons used to kill insects.6. **loss** (lose) - Habitat loss means the destruction of natural habitats, which is a major threat to wild animals.7. **National** (nation) - Cat Ba National Park is a protected area.8. **natural** (nature) - A camel's natural habitat is the desert.9. **neighborhood** (neighbour) - A neighborhood is a community of people living in a particular area.10. **death** (die) - Water pollution can cause the death of aquatic plants and animals.## Preposition Answers:1. **to** - Harmful to something means it has a negative effect on it.2. **of** - Waste of something means it is a misuse of that resource.3. **from** - Prevent something from doing something means to stop it from happening.4. **into** - Dump something into something means to put it inside.5. **up with** - Come up with something means to think of a new idea.6. **on** - Harmful effects on something means it has a negative impact on it.7. **for** - Unsafe for something means it is dangerous for it.8. **to** - Home to something means it is the place where something lives.9. **with** - Polluted with something means it has been contaminated by it.10. **of** - Aware of something means to know about it.## Writing Answers:1. **is dangerous for humans and animals to drink.** - This rephrases the original sentence using a more formal structure.2. **Because of the awful weather, we didn't enjoy our camping holiday.** - This uses the preposition "because of" to show the cause-and-effect relationship.3. **Plastic bags are non-biodegradable because they will remain in the environment for many years.** - This uses "because" to explain why plastic bags are a problem.4. **Con Dao National Park is home to many endangered marine species.** - This rephrases the original sentence using a more concise and active voice.5. **If we don't reduce our plastic waste, we'll threaten our own existence.** - This uses the conditional "if" to show the consequence of not reducing plastic waste.6. **Because countries want to raise awareness of saving energy, they participate in Earth Hour.** - This uses "because" to explain the reason for countries participating in Earth Hour.7. **After the campers leave the campsite, they will pick up all the rubbish.** - This uses "after" to show the order of events.8. **Unless nations act, air pollution deaths will double by 2050.** - This uses "unless" to show the condition for air pollution deaths not doubling.9. **The world's temperatures are rising, so the Arctic keeps losing its ice.** - This uses "so" to show the cause-and-effect relationship.10. **If we don't reduce our carbon footprint, global warming will destroy the ecosystem.** - This uses "if" to show the condition for global warming destroying the ecosystem.## Additional Writing Answers:1. **If we don't conserve water, we will face serious water shortages.** - This uses the conditional "if" to show the consequence of not conserving water.2. **Because of the awful weather, we didn't enjoy our camping holiday.** - This uses the preposition "because of" to show the cause-and-effect relationship.3. **Because plastic bags are non-biodegradable, they will remain in the environment for many years.** - This uses "because" to explain why plastic bags are a problem.

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