"Closed Canopy" Forests Are Those in Which Tree Crowns

question 8

Multiple Choice

"Closed canopy" forests are those in which tree crowns

• A) Include all sizes of trees
• B) Crowd out smaller vegetation
• C) Cover about 20 percent of the ground surface
• D) Cover most of the ground
• E) Cover less than 10 percent of the ground surface

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Definitions:

Mt. Rushmore

A monumental granite sculpture in South Dakota, featuring the faces of four U.S. presidents.

Granite

A very hard, granular, crystalline, intrusive igneous rock consisting mainly of quartz, mica, and feldspar; commonly used in buildings for its strength and durability.

Nuclear Fusion

The combination, or fusion, of two nuclei to form a heavier nucleus, in the process releasing a large amount of energy.

Atoms

The basic units of matter, consisting of a nucleus surrounded by electrons.