Grade 10 Pollution PowerPoint
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Use the PowerPoint on Pollution and video clips to answer the following questions.You may not copy and paste. You must use your own words and summarise.
''Air pollution consists of chemicals or particles in the atmosphere, that pose serious health and environmental threats''
How do human activities affect the air that we breathe? Provide examples. (15)
Why is the atmosphere important? (4)
"The atmosphere is divided into four layers called the troposphere, stratosphere, mesosphere and thermosphere".
List 4 characteristics of the each of the layers of the atmosphere. (16)
"When we breathe in we don't just inhale oxygen instead we breathe in everything that makes up the air around us".
Which gases comprise the earth’s atmosphere? (Provide percentages) (5)
Does the earth’s atmosphere change? (3)
Which gases did the earth’s atmosphere consist of (a) 4,500 years ago (b) 3,500 years ago (c) 3000 to 500 years ago (d) 200 years ago and (e) now? (List the gases, don’t write down the characteristics). (5)
Refer to slide 11.
List the order of changes to the earth’s atmosphere? (7)
What are the two main types of air pollution caused by human activities? (2)
List the most common pollutants found in the air. (6)
Refer to slide 21
What are the causes and effects of (a) carbon dioxide (b) carbon monoxide (c) sulphur dioxide and (d) particulates? (12)
What produces Carbon Dioxide? (2)
What is meant by complete combustion? (2)
What are the problems associated with the burning of fossil fuels? (3)
What is meant by incomplete combustion? (2)
Name 5 effects of Acid Rain? (5)
Name 5 causes of water pollution. (5)
What is Eutrophication and what causes it? (4)
Refer to slide 45
What is the order of stages in Eutrophication? (5)
Name 2 types of substances that pollute the land and provide examples. (4)
Name 4 methods that are used for disposing waste material. (4)
In order to deal with waste, what is the best solution? Mentions some other solutions that may be used to cut down on waste. (3)
How does air pollution affect our health? (3)
What is smog? (3)
(a) What destroys ozone in the atmosphere? (1)
(b) Why is the destruction of the ozone dangerous to us? (1)
How can air pollution be reduced?(3)
How can vehicle pollution be reduced? (1)
Which air pollutant is the most important to reduce? Give reasons for your answers. (3)