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 Hawaiian shield volcanoes (Kilauea and Mauna Loa) are the most notable examples of shield volcanoes. Lava Dome: Unlike shield volcanoes, the lava in dome volcanoes is very thick and viscous often because it is rich in silica and/or andesite. As a result it does not travel far.During eruptions, thick lava piles up on top of the crater, cools down and hardens.hield volcanoes have very fluid lava composed almost entirely of basalt. The lava which arrives at the surface is hot and little changed since the time it was generated. Shield volcanoes are the largest volcanoes on Earth.