What Is the Main Reason That Astronomers (And Other Scientists)

question 66

Multiple Choice

What is the main reason that astronomers (and other scientists) almost always use the Kelvin (absolute) temperature scale rather than the Celsius or Fahrenheit scales?

• A) The scale has a physically meaningful absolute zero of temperature.
• B) The temperatures of freezing and boiling water are easier to remember.
• C) Calculations are easier on the Kelvin scale.
• D) The size of each degree (or unit) of temperature is more convenient.

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Definitions:

Monocotyledon

A group of flowering plants whose seeds typically contain one embryonic leaf, or cotyledon.

Eudicotyledon

A major group of flowering plants characterized by the presence of two seed leaves, or cotyledons, upon germination.

Vascular Bundles

Strands of specialized tissue in plants that contain xylem and phloem for the transportation of water, nutrients, and sugars.

Apical Meristem

A region of plant tissue, found at the tips of roots and shoots, responsible for primary growth.