Which of the following BEST describes energy flow on Earth?
(1 point)
Responses
A: Earth is a closed system; only energy is exchanged with the surroundings.
B: Earth is an open system; only energy is exchanged with the surroundings.
C: Earth is a closed system; no matter or energy is exchanged with the surroundings.
D: Earth is an open system; no matter or energy is exchanged with the surroundings.