Answer: 3.friction
Explanation: friction is a force of resistance acting between objects in contact and tending to dampen their motion
Artificial Selection.
Brainliest Pls!
Answer:
its 30 N
since it didn't change it stays the same 30N.
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.