What climate related factor to form the american great plains? what biome is it?

The great plains of America are present in between Mexico and Canada. These plains are formed due to erosion which is influenced by the climatic factors as moderate temperature, the wind that also causes erosion, moderate to heavy rainfall responsible for moving rocks and soil. They deposit the soil and rock they erode, and sediment it layers by layer.

The current climate of the great plains is the continental climate which is generally characterized by the hot summer and cold winter. The biome is present it is a grassland biome.

Thus, the climatic factors responsible for the formation of the great plains are listed as above and biome is of grassland type.

i'd say that the moon rock is about 2.2 billion years old.

i think that d. wind is the answer.   i missed the question when i answered a. currents.