<u>D. Constructive</u>
Standing refers to the types of wave and antinode is a point on the wave. Only constructive and destructive are interference, and destructive only happens when they are <u>out</u> of phase
Birth control contraceptives must be taken daily. There are currently two types of birth control pills available, one is a combined oral contraceptive and the other is progestin-only pill. A combined oral pill contains both estrogen and progestin.
Answer:
Vibrations in the earth caused by the sudden release of energy, usually because of the movement of rocks along a fault.