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.
Dacite rocks. Dacite contains less quartz than rhyolite lava and more than andesite lava. The lava when it flows out a a volcano vent is so sticky that it piles on top of a volcano's vent forming a dome. Lava domes often form in the craters of stratovolcanoes like Mount Saint Helens.