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B7: Quiz 12 – Answers
B7: Quiz 12 – Answers
1) Any 3 from carbon dioxide, methane, water vapour, nitrous oxide and CFCs
2) Any 2 from burning fossil fuels, farming and deforestation
3) Ice cores (from glaciers or ice sheets)
4) The greenhouse gases increase the temperature on earth to a temperature that is able to supports life
5) short, reemitted, long, long, greenhouse gases
(Allow words that are similar like shorter for short)
The sun emits SHORT wave infrared radiation that passes through the earth’s atmosphere and hits the earth. The earth absorbs some of this energy and the rest is REEMITTED as LONG wave infrared radiation. Some of the LONG wave infrared radiation is absorbed by GREENHOUSE GASES who then heat up and reradiate this thermal energy in all directions including back down towards earth.
6) Any 3 from rising temperatures, climate patterns changing, increase in severity and frequency of storms and droughts, increase in deserts (desertification), sea levels rising, flooding, ice caps melting, changing in places where animals live/ a reduction in biodiversity
7) The temperature on earth has changed a lot over time and the climate is an extremely complex system, which makes it extremely hard to model (all of the models used are an oversimplification of real life)
2) Any 2 from burning fossil fuels, farming and deforestation
3) Ice cores (from glaciers or ice sheets)
4) The greenhouse gases increase the temperature on earth to a temperature that is able to supports life
5) short, reemitted, long, long, greenhouse gases
(Allow words that are similar like shorter for short)
The sun emits SHORT wave infrared radiation that passes through the earth’s atmosphere and hits the earth. The earth absorbs some of this energy and the rest is REEMITTED as LONG wave infrared radiation. Some of the LONG wave infrared radiation is absorbed by GREENHOUSE GASES who then heat up and reradiate this thermal energy in all directions including back down towards earth.
6) Any 3 from rising temperatures, climate patterns changing, increase in severity and frequency of storms and droughts, increase in deserts (desertification), sea levels rising, flooding, ice caps melting, changing in places where animals live/ a reduction in biodiversity
7) The temperature on earth has changed a lot over time and the climate is an extremely complex system, which makes it extremely hard to model (all of the models used are an oversimplification of real life)
Questions
1) Write down 3 of the greenhouse gases?
2) Give 2 activities that has led to an increase in greenhouse gases in the atmosphere on earth.
3) How can we monitor how the concentrations of gases in the atmosphere have changed over time?
4) How do the greenhouse gases allow life to be supported on earth?
5) Fill in the gaps in the paragraph below.
The sun emits ______ wave infrared radiation that passes through the earth’s atmosphere and hits the earth. The earth absorbs some of this energy and the rest is ______ as ______ wave infrared radiation. Some of the ______ wave infrared radiation is absorbed by ______ ______ who then heat up and reradiate this thermal energy in all directions including back down towards earth.
6) Give 3 effects of climate change. You do not need to go into detail about each of the effects.
7) The majority of scientists believe that the increased quantity of greenhouse gases in the atmosphere over the previous few hundred years are responsible for global warming/ climate change. But, why is it hard to say for certain that the increase in greenhouse gases is responsible for climate change/ global warming?
1) Write down 3 of the greenhouse gases?
2) Give 2 activities that has led to an increase in greenhouse gases in the atmosphere on earth.
3) How can we monitor how the concentrations of gases in the atmosphere have changed over time?
4) How do the greenhouse gases allow life to be supported on earth?
5) Fill in the gaps in the paragraph below.
The sun emits ______ wave infrared radiation that passes through the earth’s atmosphere and hits the earth. The earth absorbs some of this energy and the rest is ______ as ______ wave infrared radiation. Some of the ______ wave infrared radiation is absorbed by ______ ______ who then heat up and reradiate this thermal energy in all directions including back down towards earth.
6) Give 3 effects of climate change. You do not need to go into detail about each of the effects.
7) The majority of scientists believe that the increased quantity of greenhouse gases in the atmosphere over the previous few hundred years are responsible for global warming/ climate change. But, why is it hard to say for certain that the increase in greenhouse gases is responsible for climate change/ global warming?