7th science- Human Impact (Air edition)

7th science- Human Impact (Air edition)

sc.7.

Multiple Select

Why is the atmosphere important?

• Provides gases essential for survival

• Absorbs harmful radiation

• Keeps earth warm

• Makes the sky blue

• Allows birds to fly

Multiple Choice

What is air pollution?

• Contamination of atmosphere by car exhaust

• Contamination of atmosphere by pollutants

• Anything that causes smoke

• Emission of particulates into the atmosphere

Types of Air Pollution

• Gases- considered pollutants only when they are likely cause harm

• Acid precipitation- fossil fuels gas mix with water in the air to form acids and fall to Earth

• Particulates- tiny particle of solid that is suspended in air or water

Multiple Choice

When harmful substances build up in the air to unhealthy levels it is known as...

• unfortunate

• air pollution

• chemicalization

• water pollution

Multiple Choice

Select the natural form of air pollution.

• CFC's
• Burning Fossil Fuels
• Forest Fires
• Paints and Solvents

Multiple Choice

Dust, ash and pollen are examples of this air pollutant

• Lead
• Ground-level ozone
• Particulate matter
• Nitrogen oxides

Multiple Choice

Which of these problems can be caused by air pollution?

• Respiratory problems
• Reduced food sources for humans
• Increased disease for humans
• Decrease in global temperatures

Multiple Choice

Rain, sleet, or snow that contains air pollution.

• smog

• emissions

• acid precipitation

• air quality

Multiple Choice

The main human activity that releases greenhouse gases is

• using bottled water
• burning fossil fuels
• texting on cellphones
• eating meat

Vehicle exhaust pollution

• Ground Level Ozone- produced when sunlight reacts with vehicle exhaust and oxygen in the air

• Smog- forms from ground-level ozone reacts with vehicle exhaust in sunlight

Multiple Choice

What causes smog?

• The burning of particulates
• The formation of ozone
• Acid Rain
• the interaction of sunlight with pollutants produced by fossil fuels

Multiple Choice

Burning fossil fuels cause ________ that cause pollution.

• temperature decrease
• headaches
• emissions
• natural pollution

Air Quality

• Air Quality Index- describes the air quality of a location

• Indoor Air Pollution- building so well insulated that pollution created inside stays inside

• Daily exposure to air pollution can cause serious health problems

Multiple Choice

Measuring how clean or polluted our atmosphere is.

• smog

• emissions

• acid precipitation

• air quality

Climate Change

• Burning of fossil fuels releases greenhouse gases,

• Glaciers and sea ice are melting at fast rate ever recorded

• Rainfall patterns are changing resulting in more severe storms and droughts

• CFCs cause holes in the Ozone layer

Multiple Choice

Which of the following have been linked to climate change?  

• droughts
• flooding
• melting of polar ice caps
• all of the above

Multiple Choice

Global warming has been linked to a decrease in 

• the size of the polar ice caps 
• the temperature of Earth 
• the rate of species extinction 
• the rate of carbon dioxide production

Multiple Choice

When the Ozone Layer loses Ozone what happens to organisms on the earth's surface?

• They are exposed to Smog

• Nothing happens

• They are exposed to Acid Rain

• They are exposed to Ultraviolet B Radiation

Multiple Choice

The ozone layer protects us from

• UV rays
• CFCs
• Increased atmospheric heat
• Decreased atmospheric heat