In 2012, NASA's Spaceguard Survey Concluded That Astronomers Had Now

question 27

Multiple Choice

In 2012, NASA's Spaceguard Survey concluded that astronomers had now identified 90% of the asteroids with diameters greater than 1 km. How could astronomers know that they had reached this goal?

• A) Asteroids larger than 1 km are so rare and so big, they have always been easy to keep track of
• B) NASA is now able to keep track of everything in the solar system out to Pluto with great precision; nothing remains to be discovered in that region
• C) Most of the near-Earth objects that big are comets, and they all have big tails which are easy to see
• D) The people doing the survey began to find the same objects over again, indicating they were reaching the limits of their survey
• E) This was fake news; in fact, we can't ever know if we have found 90% of the larger near-Earth objects

Grasp the concept and requirements of the UCC’s firm offer rule.

Recognize the effects of a party’s death or incapacity on an offer.

Understand the regulations governing advertisments and pricing.

Know the termination clauses for offers, including revocation and legal changes impacting the offer.

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Definitions:

Induced Consumption

Consumer spending that increases when income rises and decreases when income falls, reflecting a direct relationship between income and consumption.

Total Consumption

The aggregate amount of goods and services consumed by individuals, households, and others in an economy during a given period.

Consumption Function

An economic formula representing the relationship between total consumption and gross national income.

Income Rises

An increase in the amount of money received by households or individuals over a period of time.