Aa is lava that forms a thick ,brittle crust . Pahoehoe is a lava that
forms a thin crust. Pillow lava forms when lava erupts underwater.
Blocky lava is kool, stiff lava that does not travel far from thr
eruption site.
<span>A tsunami can occur when there is vertical movement at a fault under the ocean floor.</span>
It is used for transporting food i think and other things like oil for your hair and to brush your teeth and they use it in factories try one of them.
