Answer:
b
Explanation:
its b because it doesnt say any else then 15 or any clues so its tryna trick u
Answer: 1.3 to 1.1 billion years.
Explanation: The oldest rocks in the New York Bight region are found in surface outcrops throughout the Highlands region. These exposures of Precambrian "basement rock" have been estimated at 1.3 to 1.1 billion years old.
Used by people is the answer. :-)
Answer: B - A battery with wires
Explanation: The mitochondria is the cells source of energy
