Where are the Tropics, and why do cyclones form there? What will be an ideal response?

Most magma rises until it reaches a depth at which its density matches that of the enclosing

lithosphere. Indicate whether the statement is true or false.

How does the Sun compare in size and brightness to other main-sequence stars?

What will be an ideal response?

Which Caribbean country has the lowest rate of natural increase in the region?

A) Haiti B) Cuba C) Trinidad and Tobago D) French Guiana E) Belize

One megawatt is equal to ________ watts.

A. 1 million B. 1 billion C. 100 D. 1000 E. 1 trillion