If Water Vapor Is an Invisible Gas,then How Can Satellite

question 71

Essay

If water vapor is an invisible gas,then how can satellite images show the distribution of water vapor in the atmosphere?

---

Definitions:

Real Exchange Rate

A measure of the value of one country's currency compared to another's, adjusted for inflation, reflecting the purchasing power of the currencies for goods and services.

Net Exports

The difference between a country's total value of exports and its total value of imports, indicating whether it has a trade surplus or deficit.

Purchasing-power Parity

A theory in economics that states that exchange rates between currencies are in equilibrium when their purchasing power is the same in each of the two countries.

Nominal Exchange Rate

The rate at which one currency can be exchanged for another without adjusting for inflation.