BEST ANSWER GETS BRAINLIEST Why is TNT classified as a secondary explosive?

It must be ignited using other explosive materials.
It can be used to help ignite another explosive.
It is very sensitive to heat and friction.
It is easily ignited and explodes quickly.

Secondary High Explosives

Explanation:

Secondary explosives are relatively insensitive to heat, shock, or friction and will normally burn rather than detonate if ignited in small quantities in the open air. Dynamite, TNT, Semtex (plastics) are some common examples of this type of explosive.

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