Answer:
The process responsible for producing most of the Earth's oxygen is known as photosynthesis
Explanation:
In this process, plants and certain other organisms convert sunlight into oxygen and other products.
The answer is; It provided clues for scientists to develop a hypothesis about the origin of flight.
Scientists now postulate that dinosaurs are the ancestors of birds. This because the Microraptor is a dinosaur with feathers in all its limbs. It is also the smallest dinosaur to every been discovered and has been compared with the Archaeopteryx (involving even genetic sequencing) to hypothesize how dinosaurs evolved into birds.
