Which of the following rock types is formed through the ejection of magma onto the surface of the earth?

Answer Details

Basalt is a type of rock that is formed when magma reaches the Earth's surface and cools rapidly. This process, known as extrusion, results in a dense, fine-grained rock that is black or dark in color. Basalt is commonly found in volcanic regions and is one of the most common rock types on the Earth's surface. In simple terms, basalt is a type of rock that is formed from molten magma that has been erupted onto the Earth's surface.