Question

why do you think has the number of motor vehicle almost doubled since 1990​

Answer 1

Answer:

Latin America, Central America's urban centers experienced large population growth throughout the 1990s. This growth has in most cases resulted in an increase in the number of motor vehicles, thus leading to the growing problem of urban air pollution.

Explanation:

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Answer 2

Answer:

Like much of Latin America , Central America's urban centers experienced large population growth throughout the 1990's. The growth has in the most cases resulted in an increase in the number of motor vehicles , thus leading to the growing problem of urban air pollution .

Explanation:

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