C. Not too high (cold) not too close to the equator (hot) and not too close to the poles (cold)
The answer is; movement toward or away from Earth
Stars that move closer to the observer will be percieved as blue in the electromagnetic spectrum while starts moving away from the observer will appear red and orange. This is what is called the Doppler shift effect. This phenomenon is similar to the higher pitch of the siren of an ambulance approaching you and the low pitch of the siren when the ambulance passes you and is moving away from you.
Water which runs thru pathways in the ground
Answer:
A. Continental plates are less dense than oceanic plates.
Explanation:
Continental tectonic plates have a lesser density than the oceanic plates, that's partly why they are higher. Continental plates are also much thicker (40 km, 25 miles) than the oceanic places (6 km, 4 miles).
The oceanic plates are of course also pressed down by the weight of the oceans, which is a huge force.
