Could a mixture be made up of only elements and no compounds? explain.

How is the composition of a meteorite relevant to finding out the composition of earth's core?

Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?