National parks reduce the human impact on land by preventing human development.
Option B is the correct answer.
Increased cardiorespiratory fitness
means the body makes more efficient use of oxygen requiring less to
function as well or better than when you are less fit as judged on this
index.
Answer: Communication
Explanation:
The characteristic of a healthy family relationship does this described here is communication.
Communication is when information is being transferred from one individual to another individual or from one place to another.
For every communication, there must be a sender and a receiver to receive the message that's sent.
Answer:
Independent: electronics in room
Dependent: hours of sleep
Control: school nights, night routine, lighting of room, the time the person decides to go to bed
Confounding: the person(?? not entirely sure on this one)
