Which of the Following Elements Is a Noble Gas

question 30

Multiple Choice

Which of the following elements is a noble gas?

• A)Ar
• B)Br
• C)N
• D)O
• E)K

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Definitions:

Rainfall

The amount of precipitation, in the form of liquid water drops, that falls to the ground from clouds.

Corals

Marine invertebrates in the class Anthozoa that often live in compact colonies; they are major contributors to the physical structure of coral reefs.

Symbiotic

Symbiotic refers to a mutually beneficial relationship between two different organisms living in close physical association.

Bleaching

The process of removing color from a substance, often through chemical means, which can also refer to the destruction of coral coloration due to environmental stress like warm sea temperatures.