How much of the atmosphere is nitrgoen? Oxygen? Argon? Other Gases?
78%. 21%. 0.9%. 0.1%
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What is believed to have caused the worlds oceans? What caused it?
20 million years of rain caused by all the vapour put in the air by volcanoes.
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What is a greenhouse gas? Give examples
A gas that contributes to the greenhouse effect by absorbing infrared radiation. For example carbon dioxide, methane and water vapour.
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How does the greenhouse effect work?
UV rays travel from the sun, are reflected as medium-long infrared rays however greenhouse gases trap some in the atmosphere as infrared rays gradually heating up the atmosphere.
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Why do the wavelengths change in the greenhouse effect?
As waves are slowed or refracted by gases in the atmosphere.
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What can happen to CO2 in the atmosphere?
See related info card.
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What is the appearance of carbon monoxide (CO)? Its effects? How is it produced?
It is toxic, colourless and tastless. It makes a person sleepy, dizzy, nausea, feeling faint, passing out and sometimes death. It is produced from incomplete production.
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How does carbon monoxide kill a person?
IT binds to haemoglobin in red blood cells as stays attached rendering the cell useless because oxygen can't bond with it, and subsequently dying 6 hours later. This happens on mass thus there is a lack of oxygen and the body shuts down.
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What is the appearance of soot (solid carbon) (C)? Its problems? How is it produced?
It is black. IT pollutes the air, blackens buildings, causes global dimming, damages the lungs and can cause subsequent health problem. It is produced upon incomplete combustion.
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How can soot be reduced in a fire? Why does this work?
By ensuring a good oxygen supple to allow complete combustion.
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How is acid rain caused? What are some of the effects of acid rain?
Sulfur dioxide (SO2) is released in to and reacts with the clouds and the nitrogen reacts with the oxygen in the air. Trees fall down, buildings and rocks corrode, soil turns acidic (so crops die) and lakes turn acidic.
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How can acid rain be prevented?
Sulfur dioxide could be taken out of fuels and catalytic converters in cars can remove nitrogen oxide from engine fumes.
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What is carbon footprint?
The measurement of human activitie and the amount of greenhouse gases they will use thus their impact on the environment.
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Why is climate change having an effect on the oceans? Why is this an issue?
Thermoexpansion and melting ice caps. Rising sea levels can destroy coral reefs, flood land and even sink entire contries such as Tuvalu.
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What is water stress? What can it cause?
Water stress is a shortage of fresh water, causing things such as droughts.
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Where does the majority of methane come from? What is the issue?
It is a product of animal digestion and the decomposing of their manure and also storing rubbish underground. It is an issue as it is one of the worst greenhouse gases.
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Other cards in this set
Card 2
Front
What is believed to have caused the worlds oceans? What caused it?
Back
20 million years of rain caused by all the vapour put in the air by volcanoes.
Card 3
Front
What is a greenhouse gas? Give examples
Back
Card 4
Front
How does the greenhouse effect work?
Back
Card 5
Front
Why do the wavelengths change in the greenhouse effect?
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