Ozone layer

How many miles does the ozone layer occupy the atmosphere?

• 20 miles

• 15 miles

• 5 miles

• 18 miles

Ozone layer protects people by absorbing ....... .... from the sun.

• atmosphere

• harmful rail

• handsome rays

• harmful rays

If harmful rays reach the Earth, can it cause? (2 correct answers)

• Skin cancer

• eye diseases

• oil problem

• Hole in UK, Australia, north Europe, south Afrika and Egypt

Without the Ozone layer in the atmosphere, plants cannot live and grow?

(True or false)

• True

• False

Scientist have found a hole over ... (in which continent)

• C and D are correct

• Arctic

• Europe

• Antarctica

What substances deplete the ozone layer?

• nitrogen

• fire smoke

• chlorine

• oil dust

• bromine

Depletes the ozone layer?

• FGHS

• oil

• CFCs

• FCFs

Where are CFCs mostly?

• air conditioner

• refrigerator

• cars

• spray cans

• gas stations

How many procents Ozon layer absorbe harmful rays?

• 56

• 100

• 98

• 91

Ultraviolet rays or