2, 4-7 Although deep intramuscular injection into a large muscle is the preferred parenteral route of administration, promethazineâs product labeling states that it may be given by slow IV push, which is the typical method of administration in most hospitals.
Quick Answer. Plants produce oxygen as a byproduct of photosynthesis, the process that plants and other organisms use to create usable energy. Photosynthesis consists of carbon dioxide and water reacting in the presence of energy from sunlight, which produces glucose and oxygen.
1 Plants-Plants create the majority of the oxygen we breathe through a process called photosynthesis. 2  In this process plants use carbon dioxide, sunlight, and water to create energy. 3  In the process they also create oxygen which they release into the air.