Which of the Following Processes Describes How the Aurora Is

question 91

Multiple Choice

Which of the following processes describes how the aurora is produced?

• A)reflection of sunlight by polar ice fields
• B)burning oxygen caused by the intense sunlight at high altitude
• C)scattering of sunlight in the upper atmosphere
• D)collision of fast-moving charged particles with air molecules

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Definitions:

Integuments

Layers of protective tissue covering the body of an organism, such as skin, husks, or rinds.

Seed Coat

The protective outer layer of a seed that encases and protects the embryo.

Modified Stem

A stem of a plant that has undergone structural changes to perform functions other than support and conduction of nutrients, such as storage or photosynthesis.

Fleshy Storage Leaves

Leaves that are modified to store nutrients and water, typically thicker and more succulent than ordinary leaves.