What Are the Causes of Asthma

question 50

Essay

What are the causes of asthma?

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Definitions:

Species Richness

The number of different species represented in a given ecological community, landscape, or region.

Evergreen Shrubs

Shrubs that retain their leaves throughout the year and do not shed them seasonally.

Scrub Oak

A type of small, shrubby oak tree adapted to grow in dry, sandy, or rocky soils, often found in scrublands or pine barrens.

Tallgrass Prairie

A type of grassland ecosystem characterized by tall grasses, which is native to the central part of the United States.