A mixture of gasses including oxygen nitrogen water and others that surrounds the earth is called the?

As global warming continues the ocean absorbs more of the earth's heat what term describes the ocean as a storage location for heat a) heat binb) heat sinkc) heat storaged) heat vent( answer this for me)

In general, characteristics that an organism survive and reproduce become more common in a population over time. what mechanism of evolution cause this change?

When an object is moving away from you while still making a sound, the pitch of the sound is perceived to a. lower b. unchanged c. fluctuating d. higher