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31 Cards in this Set
- Front
- Back
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Where does most of the heat on earth come from? |
The Sun |
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When that heat hits the earth, what are the two possible outcomes? |
It's absorbed or reflected. |
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What is the greenhouse effect? |
Warming of earth b/c of greenhouse gases. |
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What would happen to the earth if there were no greenhouse gases? |
Earth would become very cold. |
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What happens to earth if there were too many greenhouse gases? |
Earth becomes warmer |
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What is the greenhouse gas we are most concerned with & why? |
Carbon Dioxide because it is the one we produce the most of and it intesifys greenhouse gases. |
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Define Climate |
The average weather conditions over a long period of time. |
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What are the two main things that help determine climate? |
Latitude & Heat Absorption |
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What are the two things that describe climate? |
Temp & Precipitation |
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How is climate different from weather? |
Climate - long term Weather - short term |
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When we see big climate changes what is the result for life on earth? |
Mass extinctions |
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How is climate different from weather? |
Climate - long term Weather - short term |
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When we see big climate changes what is the result for life on earth? |
Mass extinctions |
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Describe the difference between the windward side of the mountain and the leeward side of the mountain. |
Windward - cold and wet Leeward - warm and dry |
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Because it was a cold year does this mean that climate change is not happening? Explain |
No. You need more than one year to make a trend. |
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In the last 100 years global temperatures have increased by how much? |
About 1°c |
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If earths climate warms up what will that mean to Farming? |
Most places worst , some better. |
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If earths climate warms up what will that mean to water supply? |
Many places worse , some better |
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If earths climate warms up what will that mean to sea levels? |
They would rise |
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If earths climate warms up what will that mean to Polar ice caps? |
They would melt and the sea level would rise. |
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If earths climate warms up what will that mean to Corals and shellfish? |
They struggle to survive |
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If earths climate warms up what will that mean to population of animals? |
Many will struggle to survive |
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Put the 4 different ways we measure climate in order. |
Fossils, Sea-floor Sediments, Ice cores, Tree rings. |
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What do tree rings tell you about climate? |
Cool weather , less precipitation/ Cold & Dry |
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What do fossilized plants tell us about climate? |
Cool climates/Warm climates |
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How do other fossilized animals tell us about climate change? |
They show adaptations to climate changes. |
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What does the amount of oxygen in the sea shells tell us about water temp? |
Low oxygen- cool water High oxygen - warm water |
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How do scientists use ice cores to tell us about climate? |
Ice cores trap gases (co2) from the atmosphere. |
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What are 3 natural things that can change climate & what do they do? |
Volcanoes - decreases temps Orbit Changes - change temps Plate tectonics - positions affect wind + ocean currents. |
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What is the unnatural thing that changes the climate? |
Human Activity (Greenhouse gases) |
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How can we control the amount of greenhouse gases in the air? |
Burn fewer fossil fuels |
