Cause and effect

As water flows over land, it
wears away soil and rock in
a process called erosion. Over
many millions of years, the
waters of the Colorado River
wore away soil and rock in
the desert of northwestern
Arizona. This formed the
Grand Canyon-a natural
wonder that draws tourists
and adventurers from all
over the world

Ifound this on google i hope this you “the correct answer is: the czech republic's decision in 2003 to join the european union indicated that the czech republic was willing to forge economic ties with other nations. the european union is a political and economic organism composed by 28 states located mainly in european lands.”