Which of the following mountains ranges found in the united states is heavily eroded ?
rocky mountains
sierra nevada range
cascade mountains
appalachian mountains

The red square is a famous historical site that is located in

Why the moon is not visible from earth during the new moon ?

Rainbow trout is non- native to the united states. however this species is breeding with the native gula yltrout acientistrecently observed that the hola trout were becoming exitinct what is the cause of their extinction