Answer:
here is your Answer.
Explanation:
Photosynthesis requires sunlight, carbon dioxide, and water as starting reactants .
The basic building blocks of matter are called atoms.
4.75 billion years ago, a large star near what is now the Solar System went supernova, sending heavy element debris outward into the galaxy. Some of the debris, after traveling long distances through space, collided with a Hydrogen cloud.
The main food sources of the birds( the plentiful recourses within the environment occupied by the species)
