During What Part of the Moon's Life Were Most of the Craters

question 135

Multiple Choice

During what part of the Moon's life were most of the craters formed?

• A) between about 800 million and 1.5 billion years after the Moon formed
• B) during the first 800 million years
• C) approximately evenly from when the Moon first formed until the present day
• D) during the first 200 million years

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Definitions:

Bile

A digestive fluid produced by the liver and stored in the gallbladder, essential in the breakdown and absorption of fats.

Teniae Coli

Long, ribbon-like bands of smooth muscle on the surface of the colon, contributing to its segmentation and movement.

Longitudinal Layer

In anatomy, the longitudinal layer refers to muscle fibers oriented lengthwise in an organ, such as those found in the digestive tract, aiding in its contraction and relaxation.

Portal Triad

Branches of the portal vein, hepatic artery, and hepatic duct bound together in the connective tissue that divides the liver into lobules.