Solidified lava, sulphur, volcanic ash.
RUSHMORE ROCKYS
Around volcanic regions. Such as west coast mountains like, Mt Rainier, and Mt St Helens.
Hawaii is one of them.
The answer to this question would be no/false.
Volcanoes are places where the melted or molten part of the earth is squeezed out onto the surface. Some volcanoes are more gentle, and the lava, or molten rock, oozes out without exploding. Hawaiian volcanoes are this sort. Other volcanoes are very explosive, sometimes blowing off their entire tops in one huge eruption, like Mt. St. Helens in the US. Volcanoes build up into mountains because as the lava flows out, it hardens into rock. The more lava that comes out, the higher the rock pile!
A volcanic eruption is unlikely to occur on the east coast of the US due to the region's geological stability, which is primarily influenced by the ancient Appalachian Mountains and the lack of active tectonic plate boundaries. Most volcanic activity in the US is concentrated along the western coast, where the Pacific Plate interacts with other tectonic plates, creating a subduction zone. While there are some ancient volcanic formations on the east coast, they are not indicative of current volcanic activity. Therefore, the risk of an eruption in this area is considered very low.
Plains
The answer to this question would be no/false.
About 2/5ths or 40 percent Montana's land surface is covered by the Rocky Mountains. About 60 percent of Colorado's land surface is covered by the Rocky Mountains while Wyoming's land surface is about 75 percent mountains.
No. Hawaii is a separate US state in the Pacific Ocean made of volcanic islands. It is about halfway from the US and Japan.
None we can detect, since Neptune is to far away and has too thick an atmosphere fo us to be able to see the surface.
Volcanic eruptionsSmoke from forest firesWind-blown salt from the oceans and dust from the earthThe 'smoke haze' from the US Smokey Mountains and Sydney's Blue Mountains..