Definition of interventionism for English Language Learners. : a government policy or practice of doing things to directly influence the country's economy or the political affairs of another country. See words that rhyme with interventionism.
388 Followers. A. Gas is a product of digestion that is made primarily of odorless vapors -- carbon dioxide, oxygen, nitrogen, hydrogen, and sometimes methane. The unpleasant odor is due to bacteria in the large intestine that release small amounts of gases containing sulfur.
A gas is any matter that does not have a fixed shape or volume. Gases take the shape of their container and can expand or contract to change their volume. Plasma is matter that exists in the form of high energy charged particles. A phase change is a transition of matter from one state to another. Phase changes occur regularly in nature and can be conducted by people. The phase in which matter exists is determined by the pressure and temperature of its surroundings.