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Science
8th -
9thgrade
Water and Air Pollution and Solution
20 questions
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- 1. Multiple ChoiceA large percentage of emissions resulting in air pollution today comes from _________________.motor vehiclesfactoriesfarm animalsozone depletion
- 2. Multiple Choice___________________ is a thick, brownish haze formed when certain gases in the air react with sunlight.OzonePhotochemical smogCarbon monoxideMethane
- 3. Multiple ChoiceThe key to reducing air pollution is to control ______________.methane gasoverpopulationozone depletionemissions
- 4. Multiple Choice_____________________ is created when chemicals in polluted air react with water vapor to form harmful compounds which can damage plants, waterways, metals and stone.OzoneRadonToxic sludgeAcid rain
- 5. Multiple ChoiceSome substances that cause _______________ air pollution, such as dust and pet hair, bother only those people who are sensitive to them.outdoorindoorsemi-hazardouseco-friendly
- 6. Multiple Choice
Acid rain can damage
Drinking water sources
Aquatic life
Architecture/buildings
All options are correct
- 7. Multiple Choice
We can prevent water pollution by:
Reducing the use of plastic
Proper disposal of chemicals
Keeping the use of chemical fertilizers in check
All of the above
- 8. Multiple Choice
Small particles that is made up rocks, soil
river basin
impermeable
water
sediment
- 9. Multiple Choice
The wearing away of the earth’s surface by water, wind or ice
river basin
pollution
ocean waves
erosion
- 10. Multiple Choice
Water stored in layers of soil and rock beneath Earth’s surface is called _____.
Run offs
Precipitation
Groundwater
Aquifer
- 11. Multiple Choice
When does a drought happen?
When less rain than normal falls in an area.
When more rain than normal falls in an area.
When rain falls in an area all year long.
When a lot of rain than normal falls in an area.
- 12. Multiple Choice
Primary treatment is using bacteria to break down wastes.
True
False
- 13. Multiple Choice
Secondary treatment is using filters to remove solid materials.
True
False
- 14. Multiple Choice
Oil is a pollutant that nature can handle in small amounts.
True
False
- 15. Multiple Choice
A condition in which a layer of warm water traps polluted air close to Earth's surface is _____________________.
a photochemical smog
a temperature inversion
an ozone
an emission
- 16. Multiple Choice
What are the effects of smog to health ?
Smog supports doing exercises outdoor.
Smog helps increase the amount of oxygen in your lungs.
Smog can cause eye and throat irritation and breathing problems.
Smog makes you stronger.
- 17. Multiple Choice
Check all the correct answers. What substances cause indoor air pollution?
Dust and pet hair
Toxic chemicals
Carbon monoxide
Radon
- 18. Multiple Choice
Check the letter of each sentence that is true about carbon monoxide.
It forms when wood, coal, oil or gas are incompletely burned.
It is colorless and odorless.
It cannot be detected.
It is harmless to people.
- 19. Multiple Choice
Check the letter of each sentence that is true about radon.
It may cause cancer.
It forms in rocks underground.
It is colorless and odorless.
It is harmless to people.
- 20. Multiple Choice
Fresh water is a limited resource because most of water on Earth, about 97 percent, is salt water.
True
False
- Answer choicesTagsAnswer choicesTags