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.
Forged in the heart of aging stars, carbon is the fourth most abundant element in the Universe. Most of Earthâs carbonâabout 65,500 billion metric tonsâis stored in rocks. The rest is in the ocean, atmosphere, plants, soil, and fossil fuels.