Help!!! I need help it’s finals

An equinox occurs when a. neither end of earth's axis is tilted toward or away from the sun. b. the north end of earth's axis is tilted away from the sun. c. the north end of earth's axis is tilted toward the sun. d. earth's axis is parallel to the sun's rays. select the best answer from the choices provided a b c d

It is really hard for me right know

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created