They rubbed stones really hard causing it to generate a spark. With continuous generating of a spark, they lit a piece of wood. Wood can catch fire really easily.
Heat and pressure.
weathering erosion transportation deposition compaction/cementation and lithification changes sediments to sedimentary rocks. High pressure and temperatures changes them to metamophic rocks
The main force that affects the rocks on the earth's surface is heat and erosion. Erosion causes rocks to have landslides and heat changes their structure causing them to take place as different structures.
Igneous rocks are volcanic rocks. They are formed when lava/magma dries. Examples of igneous rocks are pumice, obsidian, and granite. Sedimentary rocks are rocks formed when layers of sediment are compacted under immense pressure to form a rock. An example is sandstone. Metamorphic rocks are any rock (igneous, sedimentary, or even metamorphic), is subjected to immense heat and pressure. This causes the rock itself to change to a new rock. Examples are marble and shale.
Flint can be white, and it will spark when struck against iron or steel, but I'm not sure that striking against another piece of flint will do anything like a spark.
Rubbing of every two rocks doesn't create fire... those are special type of rocks...perhaps having some amount of phosphorus in them... when they are rubbed...friction causes heating which causes them to initiate sparks
yes
your hands or two rocks rubbed together
Spark spars soars soaks socks rocks
no they only pop once they are exposed to water
sticks and rocks they probably rubbed them together
Friction
No, its erosion that causes rocks to change
It may be that the spark plug is dirty. Try cleaning it
heat causes pressure, pressure causes friction, friction causes spark, spark causes KABOOM! all in a split second
what is the streak of sedimentary rocks