7.9(A) Which of these conditions is most responsible for Earth having an environment that supports life? help please​

What is the function of the somatic nervous system? connects the brain and the spinal cord to the rest of the body carry signals to the muscles and glands includes all nerves controlling the muscular system and external sensory receptors controls internal organs like the heart and bladder

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer

Are the layers of rock above and below the coal older or younger?