What Does the Presence of Vesicular Basalts - Rocks Containing

question 9

Multiple Choice

What does the presence of vesicular basalts - rocks containing frozen-in remnants of gas bubbles - among the lunar rock samples show?

• A)that the lunar surface was fragmented by meteorite impacts
• B)that the crust must have been made of anorthosite
• C)that molten lava once flowed over the lunar surface
• D)that the Moon was once hit by a very large meteorite

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Definitions:

Iodized Sodium Chloride

Table salt that has been fortified with iodine to prevent iodine deficiency disorders in humans.

Mutagens

Agents that cause mutations or changes in the DNA of organisms, which can lead to genetic diversity or, in some cases, diseases like cancer.

RNA

Ribonucleic Acid, a molecule essential for coding, decoding, regulation, and expression of genes.

DNA

Deoxyribonucleic acid, the molecule that contains the genetic instructions for the development, functioning, growth, and reproduction of all known living organisms and many viruses.