The radio taxis group in london has decided to measure and reduce pollution that comes out of its 3,000 cars. air pollution is a major cause of which environmental problem?
climate change
pesticide poison
deforestation
forest fires

latin america is a region of racial and cultural diversity.  it is a group of countries and dependencies in the americas where romance languages are predominant. the term originated in 19th century france as amérique latine to consider french-speaking territories in the americas along with the larger group of countries where spanish and portuguese languages prevailed.

explanation:

answer; people where able to travel across the u.s.a faster than any other mode of transportation,travel time was about a week,from coast to coast