Theories are a collection of scientific data that is generally accepted and reproducible. Theories are a result from several repeated experiments, but theories are not based on a single hypothesis. Several hypotheses are tested and appraised to become a well accepted theory. Theories may also be revised over time and can predict what may happen in the future. On the other hand, theories are not proven facts.
It is called peristalsis movement.
Answer: Environmental racism
Explanation:
Environmental racism is the process whereby, communities with poorer people and also has no political backup are been expose or experience unjust and disproportionately heavy exposure of poor and toxic chemicals, contaminated air and water, unsafe workplaces, and other environmental hazrd. Environmental racism is highly associated with factors that link poverty to poor health, including inadequate access to medical and preventive care, lack of safe play spaces for children, lack of access to healthful foods, absence of good jobs, crime, and violence.