Answer:
Because lichens enable algae to live all over the world in many different climates, they also provide a means to convert carbon dioxide in the atmosphere through photosynthesis into oxygen, which we all need to survive. ... Lichens can provide us with valuable information about the environment around us.
It is A: Uracil
DNA and RNA is my favorite subject in Biology and Anatomy
6 is true 7 is true 8 is false 9 is true 10 is false