Factors Affecting Population Growth 69Notes D. The logistic growth equation is a mathematical representation of Malthus'idea of population growth and environmental resistance.E. Concept of Chapman (1931)1.
The Earth's oceans contain a large amount of CO2 in the form of bicarbonate and carbonate ions â much more than the amount in the atmosphere. The bicarbonate is produced in reactions between rock, water, and carbon dioxide.
Scientists know that a small amount of naturally occurring carbon is carbon-14. Although carbon-14 decays into nitrogen -14 through beta decay, the amount of carbon-14 in the environment remains constant because new carbon-14 is always being created in the upper atmosphere by cosmic rays.