Geologists Think That the Eroded Surfaces, Alluvial Fans, and Valles

question 21

Multiple Choice

Geologists think that the eroded surfaces, alluvial fans, and Valles Marineris indicate that the Martian climate was once __________ and that __________ flowed across the surface.

• A) colder, liquid metallic hydrogen
• B) colder, water
• C) warmer, liquid metallic hydrogen
• D) warmer, water

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Definitions:

Consumer Surplus

The difference between what consumers are willing to pay for a good or service and what they actually pay, indicating the utility gained from the purchase.

Price Ceiling

A government-imposed limit on how high a price can be charged on a product or service.

Total Surplus

The sum of consumer surplus and producer surplus, representing the total net benefit to society from a market transaction.

Equilibrium Price

A market condition where supply meets demand, and there is no inclination for price to change, leading to market balance.