No, you do not, but you can if you want to!
yes
Lava rocks are not necessary for a propane BBQ, but they can help distribute heat more evenly and reduce flare-ups. Some newer propane BBQ models have heat diffusers that serve a similar purpose. It ultimately depends on personal preference and the design of your BBQ.
when the lava runs out of the volcano it forms new rocks
when the lava runs out of the volcano it forms new rocks
Indeed it does! Depending on how fast the lava crystalizes a different rock will be formed. Rocks that form from within the earth (like through a volcanic eruption, lava flow, magma intrusion, ect) are known as igneous rocks. Igneous rocks include granite, basalt, obsidian, andesite, among others. Basalt and obsidian are arguably the most well known rocks formed from a lava flow.
these rocks are formed by cooled magma or lava
Forms by lava from volcanoes on the sea floor
A Thermos BBQ is just a brand of BBQ, I am not sure what it uses for heat. An electric BBQ is electric and could be used indoors. I am fairly certain a Thermos BBQ is meant only for outdoors.
There is new rocks that build up they first start as lava and they build up and make new crust
After repeated eruptions of lava spread over a large area, what is replaced is the existing land or terrain. The lava creates new landforms such as volcanic cones, lava plateaus, or lava fields, changing the landscape of the area.
Volcanoes can contribute to the production of new land masses through the accumulation of lava and volcanic debris. As lava cools and solidifies, it forms new rocks and land formations. Over time, repeated volcanic activity can lead to the creation of new islands or expand existing land masses.
i dont thing they come from live thing but the lava rock comes from a volcano that use to erupt and they live a abq new mexico there are lots of lava rocks there