The answer is tiny organisms known as cyanobacteria, or blue-green algae. These microbes conduct photosynthesis: using sunshine, water and carbon dioxide to produce carbohydrates and, yes, oxygen
Answer:
Job opportunities are push.
Discrimination are pull.
Rights are push.
Explanation:
Basically, push factors are something to get you somewhere. (Positive)
Pull factors are something to get you out of somewhere. (Negative)