Approximately How Massive Must a Black Hole Be in Order

question 32

Multiple Choice

Approximately how massive must a black hole be in order to be as large as the Earth (6000 km in radius) ?

• A)A few hundredths of a solar mass
• B)A few solar masses
• C)A few tens of solar masses
• D)A few thousand solar masses

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Definitions:

Moving Water

Refers to the flow of water in rivers, streams, and creeks, which is critical for ecosystems and human use.

Salinization

The process by which water-soluble salts accumulate in the soil, often as a result of irrigation, leading to decreased agricultural productivity.

Irrigation Water

Water that is specifically delivered to crops to support their growth in times and areas where rainfall is insufficient.

Conservation Tillage

An agricultural practice that reduces the amount of tilling or plowing, maintaining more crop residue on the soil surface to decrease erosion and water loss.