Dust Is an Important Part of the Nebular Theory of Solar

question 87

Multiple Choice

Dust is an important part of the nebular theory of solar system formation because dust isneeded to explain:

• A)how the inner planets came to be rocky bodies.
• B)how the outer planets came to be gaseous bodies.
• C)how the initial cloud cooled enough to collapse.
• D)how the initial cloud heated as it contracted.
• E)why the icy bodies are located so far from the Sun.

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Definitions:

Sclereid Cells

Specialized thick-walled plant cells that contribute to the hardness of nuts, seeds, and certain fruits.

Chloroplasts

Organelles found in the cells of green plants and photosynthetic algae that conduct photosynthesis by capturing light energy to synthesize carbohydrates.

Underground Stem

A stem of a plant that grows beneath the surface of the soil which can store food or be reproductive, examples include rhizomes and tubers.

Modified Leaves

Leaves that have undergone changes to perform specialized functions beyond photosynthesis, such as tendrils for climbing or spines for protection.