fire and heat
fire, impact, etc.
Dogs, foxes and feral cats are some of the greatest threats to bilbies.
High-Yield Explosives
People
In 1858 when Abraham Lincoln was running for the Senate seat of Illinois held by Stephen Douglas, the Illinois Republican Party declared that slavery and Catholicism were the two greatest threats to American democracy.
Disease
The greatest threats to the Yellow-footed rock wallaby are foxes and feral cats, both introduced species.
top to bottom 4, 1, 3, 2
The greatest threats to the Yellow-footed rock wallaby are foxes and feral cats, both introduced species.
Standoff distance is intended to prevent sympathetic detonation between two operating buildings containing explosives. It is the minimum distance required to ensure that accidentally detonating explosives in one building will not cause a chain reaction leading to detonation of explosives in another building.
You can't take water on a plane because of security regulations that restrict liquids in carry-on luggage to prevent potential threats like explosives.
Low explosives are materials that deflagrate (burn rapidly) rather than detonate. They are typically less powerful and generate less pressure than high explosives. Two examples of low explosives are black powder and smokeless powder.