Which Characteristic of Earth Explains Why We Have an Ultraviolet-Absorbing

question 2

Multiple Choice

Which characteristic of Earth explains why we have an ultraviolet-absorbing stratosphere?

• A)the existence of photosynthetic life
• B)the existence of plate tectonics
• C)the moderate surface temperature
• D)the existence of oceans

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Definitions:

Relative Purchasing Power Parity

An economic theory that states the rates of change in price levels between two countries should equal the rate of change in the exchange rate between their currencies.

Triangle Arbitrage

A practice of profiting from the price differential between three different currencies in the foreign exchange market.

Forward Trades

Non-standardized contracts between two parties to buy or sell an asset at a specified future date for a price agreed upon today.

Forward Market

A platform for trading financial agreements that are negotiated presently but fulfilled in the future.