Is definitely not C. because Dr. always has a period after it. Is not A neither. B and D. look similar. so is one of those 2 sorry. that's all i can help you with.
Answer:
Your thinking rate is faster than your speaking rate.
Answer:
“Nano” is the metric prefix for 1 x 10-9, so a nanometer (nm) is a billionth of a meter. It comes from an ancient Greek word that means “dwarf.” Nanoparticles range from 1 to 100 nm in diameter.
Explanation:
