if you scrape the rockes together it will make friction which also means heat. If you do this long enough, hard enough, then you will make a fire but it isn't easy!
Some rocks will ignite; coal, for instance.
Igneous rock; more properly, it is formed from the cooling and solidification of magma or lava.
no there is no possible way soo NO
It depends, really. A rock's friability is the ability of a rock to easily be broken into smaller pieces(easy in the sense of hitting it with your hand). Whether or not a rock can burn is based more off of a rock's composition. For example, coal will burn, quartz will not. Rocks made up of organic material(coal, peat, lignite, oil shale) will burn - hence, fuel. A rock can, though, be organic and friable. So its possible to have a friable rock that can burn. But ignition isn't dependent upon friability.
yes
The energy resource would be the heat in the rocks in this case. Note 1: I am not aware of any technological project that tries to do just that - extract heat from rocks. However, it should be possible in principle. Note 2: This is only possible if the rocks have a higher temperature than the surroundings. For more information, you may want to read about heat engines, and about the Carnot cycle.
According to the rock cycle, there are three main classifications of rocks. Igneous rocks form when molten rock cools to a solid state; sedimentary rocks form when sediments are compressed together or hardened, or when crystals form from aqueous solutions; metamorphic rocks are rocks that are changed from one form to another by extreme heat or pressure.
Rocks do burn just pour a gasoline and drop it in the fire.
Yes, the sun can burn Space rocks because of the suns heat.
Because they do not have enough carbon in them.
Yes it is possible to burn you face in a variety of ways.
Yes
by expansion in the summer. rocks could heat to the point of expansion, develop cracks, and fall apart. the process would be hastened by water getting into the cracks, and freezing, in the winter.
limestone is formed
It is possible with a modified system but is illegal.
This is very well possible. Regards.
Possibly, possibly not. It is possible that the router will burn out at some point from use, but it is also possible that the router will not ever burn out (just lose its ability to do other things).
Cold water, and burn cream
It is not possible.