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28 true. Humus: the organic component of soil, formed by the decomposition of leaves and other plant material by soil microorganisms.
29 false, Soil organic matter is the fraction of the soil that consists of plant or animal tissue in various stages of breakdown (decomposition). Most of our productive agricultural soils have between 3 and 6% organic matter. Soil organic matter contributes to soil productivity in many different ways.
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As the debate continues over repeal of the Affordable Care Act and what might replace it, a growing share of Americans believe that the federal government has a responsibility to make sure all Americans have health care coverage, according to a new Pew Research Center survey.Currently, 60% of Americans say the government should be responsible for ensuring health care coverage for all Americans, compared with 38% who say this should not be the government’s responsibility. The share saying it is the government’s responsibility has increased from 51% last year and now stands at its highest point in nearly a decade.
