Question

2) What geological process best explains how the Grand Canyon formed?
(ponto)
(a) A tsunami
b) A volcanic eruption
c) An earthquake
d) River erosion​

Answer 1

Resposta:

A alternativa D está correta.

Answer 2

A resposta correta é a alternativa d) river erosion.

A explicação para essa resposta está no trecho "Formed by over 70 million years of erosion from the Colorado River [...]".