Where Have Some Scientists Hypothesized That They Have Found Direct

question 4

Multiple Choice

Where have some scientists hypothesized that they have found direct evidence for life,either contemporary or ancient,beyond Earth (although the hypothesis has been strongly disputed by many other scientists) ?

• A) In "orange soil" found on the Moon
• B) In spectra of the dark deposits along fissures in the ice of Jupiter's satellite,Europa
• C) In the "soil" (regolith)at the Viking 2 landing site on Mars
• D) In a meteorite composed of ancient Martian rock

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Definitions:

Market Demand Curve

A graphical representation that shows the total quantity of a good or service that all consumers in a market are willing and able to purchase at various prices.

Marginal Benefit

The gain in utility or satisfaction derived from the additional consumption of a unit of a good or service.

Marginal Benefit

The enhanced benefit or happiness one achieves by using an extra unit of any good or service.

Purely Competitive

A market structure characterized by many small firms producing identical products, free entry and exit, and no single firm influencing the market price.