Question

Which of the following statements about magma is false?

1) magma consists of a mixture of melt, solid crystals, and gas
2) magma that flows onto the surface of the Earth is called lava
3) magma that solidifies below the surface of the Earth forms intrusive igneous rock
4) magma viscosity decreases as temperature increases and as the water content of the magma increases
5) the temperature of most magmas is about the same as the boiling temperature of water at the Earth's surface

Answer 1

The false statement about magma is that the temperature of most magmas is about the same as the boiling temperature of water at the Earth's surface.

Step-by-step explanation:

The false statement about magma is #5) the temperature of most magmas is about the same as the boiling temperature of water at the Earth's surface.Magma is a mixture of melt, solid crystals, and gas, and it can contain various types of minerals depending on its composition. When magma flows onto the surface of the Earth through cracks or volcanoes, it is called lava. Magma that solidifies below the surface forms intrusive igneous rock. The viscosity of magma decreases as temperature increases and as the water content of the magma increases, so statement #4 is true.