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Environmental Applications
Test Description: The objective of this game is to identify some environmental applications of separation techniques.
Instructions: Answer all questions to get your test result.
1) Natural water is often polluted. It is advised to equip drinking water tap with ............. in order to treat water coming into house.
A
Water Filter
B
Fuel Filter
C
Oil Filter
D
Air Filter
2) The role of water filters is to:
A
remove microbes and bacteria.
B
remove salts.
C
remove dissolved substances.
D
remove suspended particles.
3) How do filters work? Filters have pores where
A
all particles pass through these pores.
B
larger particles pass through these pores.
C
the larger dimension of pore, the more efficient is the filter.
D
smaller particles pass through these pores.
4) Dust and solid particles are very hamful to car engines. Air filters
A
retain solid particles from water coming into car engine.
B
retain dust from the air coming into car engine.
C
retain solid particles from fuel coming into car engine.
D
retain solid particles from oil coming into car engine.
5) In order to protect car engines from solid pollutants coming in with fuel, cars are equiped with:
A
Oil Filter
B
Fuel Filter
C
Air Filter
D
Water Filter
6) Pollution occurs when harmful materials are released into environment. Air pollution occurs
A
when harmful gases are released into air.
B
when harmful materials are released into soil.
C
when harmful gases are released into water.
D
when harmful materials are released into water.
7) Indicate which of the following is not a source of air pollution.
A
Gases released from exhaust pipes of vehicles.
B
Smoke and harmful gases released from factories.
C
Burning garbage.
D
Walking and Cycling.
8) Water pollution can be reduced by:
A
Sewage water treatment.
B
Use public transportation means.
C
Walking and Cycling.
D
Equip smokestack of factories with filters.
9) Vehicles are major sources of air pollution. Suggest way to reduce air pollution caused by vehicles.
A
Equip factories with scrubbers.
B
Use natural fertilizers.
C
Use fuels that have high sulfur content.
D
Use pupblic transportation means like buses.
10) Indicate which of the following is not an effect of water pollution.
A
Make the water unsafe for drinking and for domestic use.
B
Spread many diseases.
C
Breathing problems.
D
Harm fish and other organisms that live in water.
*select an answer for all questions
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