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.
About 94% of the six million known compounds contain carbon, far more than any other element. Carbon, in the form of diamond, is the hardest natural material on Earth. Carbon is found in a wide variety of rocks, such as chalk and limestone.