Answer:
Because they represent the leftover building blocks of the solar system-scientists can study these and learn about the composition of the solar system.
Southern hemisphere i think
Photosynthesis is the process by which plants, some bacteria and some protistans use the energy from sunlight to produce glucose from carbon dioxide and water.
Arteries are blood vessels responsible for carrying oxygen-rich blood away from the heart to the body. Veins are blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation.