NEW
Font size
WorksheetsS. Studies - Assignment - Ch 3 - Geo - grade 7
Total questions: 10
Worksheet time: 5mins
What protects Earth from ultraviolet rays from the sun?
ozone layer
mesosphere
air pressure
troposphere
What gas makes up the majority of the atmosphere?
oxygen
nitrogen
water vapor
carbon dioxide
The ozone layer is made up of oxygen elements that protect living forms on Earth from UV (ultraviolet) radiation. What is the chemical formula for ozone?
O4
O3
O2
The amount of ozone protecting us is decreasing.
True
False
What happens to form ozone gas?
Oxygen molecules interact with the UV rays from the Sun.
Chlorine molecules interact with the UV rays from the Sun.
Oxygen and chlorine molecules produce a gas.
One way to stop the destruction of ozone is vy reducing human created pollutants.
true
false
Which of the following is the most common ozone destroying pollutants?
Chloroflurocarbons
particular matter
Nitrogen dioxide
carbon monoxide
