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6. Strip cropping is a method of farming used when a slope is too steep or too long, or otherwise, when one does not have an alternative method of preventing soil erosion. ... The practice has been widespread in North America as a means of mitigating soil erosion from wind and water.
7. Cotton grows best in soil with a pH between 5.8 to 8.0. Yield decreases are usually not severe until the soil pH drops below 5.5 to 5.2 on sandy loam and silt loam soils respectively, or above 8.5 for western irrigated soils in the USA. When the soil pH falls beyond this range, soil amendments are recommended.
8. Rio de Janeiro, Brazil
Rio de Janeiro, BrazilIn 1992, more than 100 heads of state met in Rio de Janeiro, Brazil for the first international Earth Summit convened to address urgent problems of environmental protection and socio-economic development.
9. Rio Convention relates to the following three conventions, which were agreed at the Earth Summit held in Rio de Janeiro in June 1992. At the Earth Summit, the decision-making process was tailored to promote a sustainable planet for future generations.
10. Rocks are broken down into soil by the process of weathering. Weathering is disintegration and decomposition of rocks and minerals over a period of time. Weathering breaks down and loosens the surface minerals of rock so they can be transported away by agents of erosion such as water, wind and ice.
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Riya Answer deleted
Kepler-452b is a super-Earth exoplanet orbiting within the inner edge of the habitable zone of the sunlike star Kepler-452 and is the only planet in the system discovered by Kepler. It is located about 1,800 light-years from Earth in the constellation of Cygnus.
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