Temperatures in the lower mantle the reach around 3,000-3,500 degrees Celsius and the barometer reads about 125 gigapascals, about one and a quarter million times atmospheric pressure
Answer:
North American Free Trade Agreement
The United States–Mexico–Canada Agreement is based on the North American Free Trade Agreement (NAFTA) which originally came into effect on January 1, 1994.
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Explanation:
we can protect soil quality by the following ways:
1.plantation should be done.
2.chemicals should not be used.
3.using earthworm in the field as it makes the soil fertile
4.construction of dams should be made which prevents soil erosion.
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In the following statements, a challenge that the agricultural faces in the coming decade would be B. Farmers in Africa must adopt new methods in order to meet their needs. The IAASTD would respond to the widespread realization about the technological achievements.
