Answer:
Explanation: A dune is a mound of sand formed by the wind, usually along the beach or in a desert. Dunes form when wind blows sand into a sheltered area behind an obstacle. Dunes grow as grains of sand accumulate. Every dune has a windward side and a slipface.
Answer:
I believe the correct answer is 4 Polar Ice Sheets
Explanation:
Most of earths water comes form melting Polar Ice Sheets.
B) Cultural groups may be isolated and thus become more distinct.
This is because traveling over mountains can be hard or dangerous which will result in little long distance travel and in result little interaction with other groups
Answer : a mountain or a hill that is being created on the Earth's crust when magma lands on the surface.
A volcano is also referred to as the vent that facilitates the transport of molten rock from deepest part of the Earth towards the its surface. The magma or the molten rock that erupts from the volcano is called lava. Lava is responsible for the construction of the cone that surrounds the vent of the volcano. A volcano that erupts magma turned to lava is called and active volcano while the volcano that has not erupted for quite some time is called dormant volcano.
Definitely A. Road Transport