They include factors such as light, radiation, temperature, water, chemicals, gases, wind and soil. In some environments, such as marine environments, pressure and sound can be important abiotic components. Amazon River abiotic The Amazon River provides and removes excess water to and from the environment. Environmental factors, as related to genetics, refer to exposures to substances where we live or work behaviors that can increase an individual's risk of disease or stressful situations.

Environmental factors, as related to genetics, refer to exposures to substances where we live or work, behaviors that can increase an individual's risk of disease or stressful situations. Factors such as light, temperature and pollution could permanently alter our DNA and gene expression, particularly as climate change continues. Local environmental conditions could include availability of food, light, space, and water. Examples of genetic factors could include large breed cattle and species of grass affecting growth of organisms. The genotype of a plant affects its growth. For example, selected varieties of rice grow rapidly, maturing within 110 days, whereas others, in the same environmental conditions, grow more slowly and mature within 155 days. A producer has control over the genetic factor by his choice of variety. Primary abiotic factors are light, temperature, water, atmospheric gases, and ionizing radiation, influencing the form and function of the individual. For each environmental factor, an organism has a tolerance range in which it is able to survive. Every organism has a unique ecosystem within which it lives. This ecosystem is its natural habitat. This is where the basic needs of the organism to survive are met: food, water, shelter from the weather and place to breed its young. All organisms need to adapt to their habitat to be able to survive. However, many other factors also influence the viability of microbes such as humidity, temperature, oxygen content, specific ions, UV radiation, various pollutants, and other air-associated factors (AOFs)