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.
1 Lava is molten rock expelled by a volcano during an eruption. 2  A lava flow is a (moving) outpouring of lava, which is created during a non-explosive effusive eruption. 3  When it has stopped moving, lava solidifies to form igneous rock.The composition of a lava determines its behavior more than the temperature of its eruption. The viscosity of lava is important because it determines how the lava will behave. Island-arc magmas are generated in metosomatically altered mantle.hen it has stopped moving, lava solidifies to form igneous rock. The composition of a lava determines its behavior more than the temperature of its eruption. The viscosity of lava is important because it determines how the lava will behave.