The temperature of the earth increases
<span>The best choice is option C: Signing the Central America Free Trade Agreement. Also known as CAFTA, this agreement included the United States and various countries in Central America. Trade agreements such as this one develop new open markets, eliminate tariffs, and increase access to a variety of services.</span>
Answer: B, as rivers carry sediment to the ocean, they can create triangular plains called deltas.
<span>This is called a sidereal month, and reflects the corresponding orbital period of 27.3 days
The moon takes 29.5 days to return to the same point on the celestial
sphere as referenced to the Sun because of the motion of the Earth
around the Sun.
The answer would be C, one month.
</span>
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.
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