Mercury Is Very Hard to Observe from Earth Because

question 94

Multiple Choice

Mercury is very hard to observe from Earth because:

• A)it always appears as only half lit from Earth.
• B)it never gets more than 28 degrees from the Sun's glare.
• C)its elliptical orbit causes it to change speed unpredictably.
• D)its barren surface reflects too little sunlight; it is almost invisible always.
• E)its very rugged surface does not allow radar to bounce back to Earth.

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Definitions:

Tulsa Riot

A race riot in 1921—the worst in American history—that occurred in Tulsa, Oklahoma, after a group of black veterans tried to prevent a lynching. Over 300 African-Americans were killed, and 10,000 lost their homes in fires set by white mobs.

African-Americans

People in the United States who have ancestry originating from the black racial groups of Africa.

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The 28th President of the United States (1913-1921), known for leading the country during World War I and advocating for the League of Nations.

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Individuals who work for the government of a federal state and are part of its civil service or administration.