Answer: C
Explanation:
C just because the other choices dont really make sense. They use these fibers as a way to see what clothes, shoe strings, carpets, etc was there it help identify a person at the scene. Hope this helps!!
2nd family
calcium is in the forth row, second family.
It doesn’t exist because the compounds aren’t pounded they jus com
Answer:
D
Explanation:
The source of the thermal energy in a combustion engine is the spark from the spark plug that ignites the fuel and air mixture converting chemical energy into thermal energy.