How Orissa can prevent soil degradation?
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a hospital based cross-sectional study, it is planned to estimate the mean D-dimer level among COVID-19 patients. From previous literature, the standard deviation was found to be 200 ng/mL. If the researchers want to estimate the mean with a 50 ng/mL precision and 95% significance level, what is the minimum sample size required?
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How can we mitigate soil degradation?
Practicing crop rotation allows different plants to grow in an area of soil every year. ... Agroforestry involves growing crops around trees and other plants such as hedges. ... Permaculture is a form of sustainable farming that respects nature and its design.
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