Answer: because it allows a student to explore different points of view and come up with an angle
Explanation:
Cross referencing is when several books, articles or journals are checked and referenced so that one can have different opinions and explanations with regards to a particular topic.
Therefore, based on the explanation, cross-referencing a topic is important for research purposes so that the researcher can have several opinions and then choose the best one or most ideal.
Answer:
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.