Select the correct answer from each drop-down menu. C. In a reverse process, a device that uses motion
A device that uses electricity and magnetism to create motion is called a
and magnetism can be used to create

How far is the region from the equator or control climate

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size

What are the major types of a chemical compound