Which accurately represents these building blocks of matter from the smallest to the largest?

Emotional signs of stress include aches and nausea

Dora experiences frequent headaches and was ordered by her doctor to take medicine for headache relief. what should she do so as not to abuse the medicine? take the medication as prescribed take an extra over-the-counter pill take double the dose of the prescribed medicine to make the headaches go away quickly take the medication to relieve her feelings of loneliness and depression

The first step in treating water from a river or lake is usually