Which of the following statements are true? Select all that apply.

Units of currency from different countries have the same value.
It is best to travel abroad when the exchange rate gets you more units of a foreign currency.
Many exchange rates float, or constantly change.
The amount of one currency that can be traded for a unit of another currency is the exchange rate.

Based on what you know about the location of the earth in relation to the sun, why is this called the goldilocks zone in other galaxies? a. it's a region that exhibits a weak gravitational pull, thus maintaining a safe distance from the sun. b. it's an area that doesn't experience any major weather events that could cause mass extinctions. c. it's an area that's an optimal distance from the sun for potentially supporting life. d. it's a region that's unaffected by asteroid or meteor impacts.

What is the main purpose of the gi bill

Which component of a milankovitch cycle is related to periodic ice ages throughout earth’s history?