The united states and the soviet union. but the soviet union does not exist any more<span />
Dunes which are curved and have their tails pointing into the wind are
Dunes <em>which appear</em> as more than a singular type are called:
According to the given question, we are asked to state the names and types <em>of dunes </em>which are curved and point towards the wind and the ones which <em>appear </em>as more than a singular type.
As a result of this, we can see that a sand dune is an <em>accumulation of sand particles </em>which are propagated by agents of air to one location and there are four main types of sand dunes of which parabolic and star dunes are part of them.
Therefore, the correct answers are parabolic and star dunes
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<span>the United States has a abundant supply in</span> nuclear energy
In the case of high evaporation rates, the local government can manage water supply by scheduling a rotating water outage. The outage can be set to the hours when the evaporation rate is the highest. This will allow the citizens to save up water and use it wisely.