A dune<span> is a mound of </span>sand<span> formed by the wind, usually along the beach or in a desert. </span>Dunes form<span> when wind blows </span>sand<span> into a sheltered area behind an obstacle. </span>Dunes<span> grow as grains of </span>sand accumulate. Sand dunes<span> serve an important purpose by protecting inland areas from coastal water intrusion. They are able to absorb the impact and protect inland areas from high energy storms and act as a resilient barrier to the destructive forces of wind and waves.</span>
<span>Why do more hydrothermal resources exist in the western regions of the United States?<span>
</span>Answer: There are more hydrothermal resources in the Western regions of the United States because the there are temperatures hot enough to be useful as a geothermal resource located at depths too far below the surface. This is why this area became a prime target for the development of geothermal energy resources.
I hope it helps, Regards.</span>
Answer:
The climate region labeled with number 4 is the tundra, characterized by a very cold and dry climate, and low diversity of organisms that are highly specialized.
Explanation:
The tundra is a climate region that is found in the northernmost parts of Asia, Europe, and North America. This climate region is characterized by very low temperatures are year-round, and even when it is summer the temperatures are relatively low. The precipitation levels are also very low, and when there are any they come in the form of snow. The winds tend to be very strong and very cold.
The animals and plants that live in the tundra are all highly specialized. The plants tend to be very small, close to the ground, and are able to withstand extremely cold temperatures and a very long period of being inactive. The animals have very thick fur, often double layer, preserve a lot of fat, have wider nostrils, wider paws, and their ears tend to be very small to avoid freezing. Some of the plants that can be found here are the lichens and mosses, while from the animals there are polar bears, Arctic foxes, lemmings, walruses, multiple species of seals...
I would say it would b D. Irish moving to America during the Potato Famine, as it wasn't necessarily forced, but they went of their own free will
Answer:
It is the only habitable planet amongst all. Earth is well equipped as a planet and ideally placed in our solar system and galaxy to support life.
