Polyunsaturated fats are lipids in which the constituent hydrocarbon chain possesses two or more carbonâcarbon double bonds. Polyunsaturated fat can be found mostly in nuts, seeds, fish, algae, leafy greens, and krill.
Lava flow during a rift eruption at Krafla, Iceland in 1984. Lava is the molten rock expelled by a volcano during an eruption and the resulting rock after solidification and cooling. This molten rock is formed in the interior of some planets, including Earth, and some of their satellites. The source of the heat that melts the rock within the earth is geothermal energy.
The molten rock that comes out of a volcano is called lava. When molten it is a liquid. When it hardens it is still lava, now in the solid form. Magma is the term used for lava when it is below the surface. Lava definitions: 1. Molten rock that reaches the earth's surface through a volcano or fissure.