Humic Acid

5.) The term Necro-Sphere is used to describe the establishment of a sphere of decomposition of elements of substances that are a part of the earth's natural process of decomposition and regeneration.
True
False
Not enough info

8.) One of the factors that favors life on earth is a nearly circular orbit at a uniform distance from the sun.
True
False
Not enough info

22.) Soil scientists tell us that stable soil humus is categorized into three distinct fractions. These fractions are typically found in nature in a balance consisting of : (1) 50% humins, (2) 10% fulvic acids, (3) 40% humic acids
True
False
Not enough info

23.) Dursban, the most widely used insecticide in the country, is also among the pesticides most hazardous to human health, according to scientific studies and the findings of the U.S. Environmental Protection Agency.
True
False
Not enough info