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Year 6 Unit 3.2 Review Questions

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Year 6 Science Chapter 3 – Personal Health and the Environment Year 6 Unit 3.2 Review Questions

You will find 30 multiple-choice questions related to the topic of “Our Environment.” Please answer all of the questions.

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Question 1 of 30
1. Question
What is an environment?
- A habitat is a place where living organisms reside.
- A location where an animal can obtain nourishment.
- The habitat refers to the environment or area where an organism lives and thrives.
- None of the above is the correct answer.
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Question 2 of 30
2. Question
Which of the following can change an environment over time?
- Natural disasters only
- Human activities only
- Magic only
- Both natural disasters and human activities
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Question 3 of 30
3. Question
Which of the following natural events, caused by a lightning strike on a dry tree, can change the environment?
- bushfire
- volcano eruption
- earthquake
- drought
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Question 4 of 30
4. Question
A tsunami is a natural disaster caused by:
- heavy rainfall inland
- a storm at sea
- an earthquake in the ocean
- soil erosion
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Question 5 of 30
5. Question
What are the consequences of eroded soil flowing into rivers and streams?
- The water in the rivers and streams becomes polluted and muddy.
- The water in the rivers and streams becomes clear.
- The river becomes flooded.
- The surrounding areas become deforested.
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Question 6 of 30
6. Question
What is the term for an opening in the Earth’s surface that erupts lava, ash, and gases?
- A cave
- A volcano
- A crater
- A cavity
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Question 7 of 30
7. Question
What are the primary reasons for deforestation?
- Agriculture
- Towns and cities
- Roads
- All of the above
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Question 8 of 30
8. Question
What is the term used to describe the process of removing trees and plants by cutting or burning?
- Forest reserve
- Plantation
- National parks
- Deforestation
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Question 9 of 30
9. Question
Which of the following is a reason for cutting down trees?
- Leaves
- Branches
- Wood
- Roots
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Question 10 of 30
10. Question
Why does clearing forests may lead to soil erosion?
- Because there are no roots to hold the soil
- Because the soil is exposed to the sun
- Because the soil gets hot easily
- Because the soil gets easily wet by rain
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Question 11 of 30
11. Question
What is animal extinction?
- Animals that are found in large numbers
- Animals that no longer exist
- Animals that are found in different places
- Different types of animals living in the same environment
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Question 12 of 30
12. Question
Could you explain why proboscis monkeys are listed as an endangered species?
- Because there are not many of them left in the world.
- Because they look different from other monkeys.
- Because they eat leaves, seeds, and unripe fruits.
- It is because they have a large nose.
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Question 13 of 30
13. Question
Which of the following can cause land pollution?
- Disposing of waste into rivers and lakes.
- Indiscriminate dumping of rubbish by people.
- Disposing of waste by burning it.
- Throwing rubbish into bins.
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Question 14 of 30
14. Question
What are the diseases that can be caused by water pollution?
- Diarrhea
- Typhoid
- Dysentery
- All of the above
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Question 15 of 30
15. Question
What is one of the main reasons for air pollution in big cities?
- Dumping of rubbish in landfills
- Release of sewage into rivers and lakes
- Emissions from vehicles and power stations
- Deforestation
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Question 16 of 30
16. Question
Why do individuals wear masks while traveling in cities with air pollution?
- To prevent inhaling fine particles from the air.
- To prevent diseases from other people.
- To look beautiful.
- To prevent spitting.
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Question 17 of 30
17. Question
Why is sewage treatment important?
- To remove solid wastes
- To remove harmful microorganisms
- To remove poisonous substances
- All of the above
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Question 18 of 30
18. Question
What does conserving the environment mean?
- Planting trees in a new environment.
- Making the environment beautiful.
- Protecting the environment from harm and keeping it healthy.
- Preventing heat from the sun.
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Question 19 of 30
19. Question
The following practices are effective for conserving the environment except for:
- Reusing old tires to make swings in the playground
- Switching off lights or other electrical appliances that are not being used
- Putting glass bottles in recycling bins
- Throwing metals in the rubbish bins
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Question 20 of 30
20. Question
Which of the following actions contributes to environmental pollution?
- Disposing of household waste in trash bins
- Littering anywhere one pleases
- Walking or driving to nearby locations
- Continuing to cut down trees
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Question 21 of 30
21. Question
What are non-renewable sources of energy?
- Energy sources that, once used, cannot be replaced
- Energy sources from the sea
- Energy sources that, once used, can be reused
- Energy sources from the sun
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Question 22 of 30
22. Question
The following energy sources are renewable except:
- Moving water
- The sun
- Wind
- Oil
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Question 23 of 30
23. Question
Why is solar energy considered a clean energy source?
- Solar energy uses solar panels.
- Solar energy does not pollute the air.
- Solar energy can be easily installed.
- Solar energy can be converted to electrical energy.
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Question 24 of 30
24. Question
What is non-renewable sources of energy?
- Energy sources once used cannot be replaced again
- Energy sources from the sea
- Energy sources once used can be reused again
- Energy sources from the sun
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Question 25 of 30
25. Question
The following energy sources, once used, are gone forever except for:
- oil
- natural gas
- gas
- wind
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Question 26 of 30
26. Question
What is the main cause of pollution in rivers and lakes?
- Dumping rubbish into rivers and lakes.
- Dumping rubbish anywhere by people.
- Burning rubbish.
- Rubbish disposal in landfills.
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Question 27 of 30
27. Question
What does 3R’s mean?
- Read, Remember and Retain
- Reduce, Reuse and Recycle
- Reject, Record and Restore
- Refer, Report and Refrain
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Question 28 of 30
28. Question
Oil and gas are examples of ________
- Nuclear fuels
- Fossil fuels
- Man-made fuels
- Fuels obtained from the sea
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Question 29 of 30
29. Question
Which of the following statements about National Parks is false?
- National Parks are protected areas.
- People are not allowed to hunt animals in National Parks.
- People are allowed to cut down trees in National Parks.
- People are allowed to jog in National Parks.
Correct
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Question 30 of 30
30. Question
Why do people use face masks in smoky cities?
- To prevent spitting
- To prevent germs from entering the body
- To prevent fine particles from entering the lungs
- To stop the spread of diseases
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