Answer:
Mid ocean ridge are where new crustal material is forced to the surface. The new crustal material is pushed apart forming two different plates moving in two different directions. An ocean trench is where old crustal material is pushed under another plate where it is melted and turned into magma.
The high pressure in the Great Basin forces it way toward the lower pressure on the coast usually during the winter months. As the air sinks, it heats up, loses moisture, and increases in speed as it forces its way through the canyons. So, hot intense winds are the result. This also contributes to the forest fires in the area.
The landform that is much of northern and eastern Europe would be plains.
This is geography not math
The largest and most important river system in South America is the Amazon. Making A your answer.
