During the paleozoic and precambrian eras, there was only one large expanse of land. where was this land located?

a. near modern-day iceland

b. near modern-day australia

c. near modern-day canada

d. near modern-day chile

How does rain water cause erosion and deposition? a. when acidic water soaks into the ground, water dissolves limestone, resulting in the formation of caves. b. when a river overflows it moves downhill resulting in the formation of caves. c. when it rains, water flows into rivers and streams and moves back to land, resulting in the formation of caves. d. when water empties into lakes, sediment is deposited, resulting in formation of caves.