Purvi Grade 3 Science: Pollution: Air and water

1. Pleasant cool wind is known as __________.

• Gale

• Breeze

• Storm

• Wind

Tags

NGSS.MS-ESS2-6

2. Strong and heavy wind is called _______.

• Gale

• Thunderstorm

• Storm

3. ________ Layer protects us from harmful rays of the sun.

• Argon

• Ozone

• Nitrogen

4. Which one of the following is the natural cause of air pollution?

• bursting crackers

• Burning garbage

• Lightning

5.Which of the following is the incorrect effect of air pollution?

• hay fever

• Cough and cold

• Vomiting

6. The activity shown in picture will increase air pollution.

• True

• False

7. The process after evaporation is _______.

• Condensation

• Transformation

• Transpiration

Tags

NGSS.MS-ESS2-4

8. Throwing garlands and other temple offerings into the water will decrease water pollution.

• True

• False

Tags

NGSS.MS-ESS3-3

NGSS.MS-LS2-5

9. _________should be treated first to make water safe.

• Clean water

• Waste water

• Boiling water

10. The maximum amount of freshwater is trapped in ________.

• Wells

• Rivers

• Glaciers