Why Is It Possible for Rock Avalanches to Move at Speeds

question 82

Multiple Choice

Why is it possible for rock avalanches to move at speeds in excess of 200 kilometers per hour?

• A)They are moving with large quantities of water.
• B)They are moving with molten material such as lava.
• C)They are moving with large quantities of air trapped and compressed beneath the debris.
• D)They are moving with large chunks of ice compressed beneath the moving material.

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Definitions:

Bid Aggressively

In a bidding scenario, to offer a significantly higher amount than other bidders, often to quickly secure an item or contract.

True Values

The actual, intrinsic worth or validity of something, not influenced by external factors or perceptions.

Selling Price

The price at which goods or services are sold to consumers.

Second-Price Auction

An auction format in which the highest bidder wins, but pays the price bid by the second-highest bidder.