I think so non-french talkers would not understand what they are taking about
A- spiral , b-elliptical , c- irregular
The warming of the Earth due to buildup of carbon dioxide and other gases that help trap energy is termed the greenhouse effect.
Because the exchange of incoming and outgoing radiation that warms the earth because heat trapped is close to Earth's surface by “greenhouse gases.” These heat-trapping gases can be thought of as a blanket wrapped around Earth, keeping the planet toastier than it would be without them.
Green house gases:
1) Carbon dioxide (CO2)
2) Methane (CH4)
3) Nitrous oxide (N2O)
4) Industrial gases:
a) Hydrofluorocarbons (HFCs)
b) Perfluorocarbons (PFCs)
c) Sulfur hexafluoride (SF6)
d) Nitrogen trifluoride (NF3)
The concentration of greenhouse gases is increasing in large part because of the combustion of fossil fuels. Key sources of chlorofluorocarbons are solvents, refrigerants, and propellants.
#SPJ4
The Alps are a major European mountain range which contains some of the continent's tallest peaks. The Alps are located in France, Switzerland, Italy, Monaco, Slovenia, Austria, Lichtenstein and Germany. The Alpine region in each country has it's own strong identity and culture, such as farming, cheese making and woodwork. One of the highest peaks in the Alps is the Mont Blanc which spans the French-Italian border at 15,781 feet. Another high peak in the Alps mountain range is Matterhorn.
