World Weather

2. they are cooler regions on the sun's surface that appear as dark spots
4. the practice of cultivating land, producing crops and raising livestock, is the third highest contributor of greenhouse gases
7. the decrease in global temperatures over a long period of time
10. the highest contributor of greenhouse gases
11. ____________ factors. They are factors caused by human activities such as the burning of fossil fuels, deforestation and changing land use
12. ______________ is the loss of forests due to the removal or clearance of trees in forested areas
14. use less energy to provide the same service
16. ______________ is the increase in the mean height of the sea's surface between high tide and low tide relative to land
19. __________hosted a United Nations Climate Change Conference

1. the earth's surface then emits longwave radiation in the form of ___________ radiation
3. a process by which an increasing number of people live in urban areas such as cities and towns
5. sulphur dioxide with dust and ash, these particles reflect solar energy back into space. This results in____________.
6. an example of insect-borne diseases which causes high fever ,chills and flu-like symptoms
8. the gases in the earth's atmosphere trap longwave radiation emitted from the earth's surface , warming the atmosphere
9. good absorbers of longwave radiation
13. _________ refers to the production of goods and services within a country
15. increase in global temperatures over a long period of time
17. the __________ greenhouse effect occurs when human activity causes greenhouse gases to be released at a fast greater rate than that of the natural emissions of greenhouse gases
18. known as greenhouse gases , given out by cattle