What type of forest occurs in North and South America, Australia and New Zealand?

Valdivian forests

Together they are the second largest in the world, after the Pacific temperate rain forests of North America. The Valdivian forests are a refuge for the Antarctic flora, and share many plant families and genera with the temperate rainforests of New Zealand, Tasmania, and Australia.

Explanation:

answer; gravity pulls glaciers down hill and as glaciers flow it pick up rocks and soil;