The effect can be described as the effect produced by a moving source of sound or electromagnetic waves due to the relative motion of a source or a receiver. a) doppler b) lunar c) seismic d) sonar

If a balloon is taken outside on a very cold day, what will occur?

The mantle is made up of which structural zones?

Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change