Mountain biking
The most dangerous type of rhino is the black rhino.
political for going places and physical for hiking, biking, etc...
What type of reaction produces the most dangerous radioactive waste?
Plinian
ventricular fibrillation
Though e-wastes and bio medical wastes are the dangerous wastes, the most dangerous type of waste, to the best of my knowledge, is radioactive wastes due its long standing ill effects. -answer by rajasekaransk
malignant melanoma
no
Depends a bit on the type of cycling you're talking about, but most probably it's about doing jumps, "catching air".
Tornadoes are among the most dangerous forms of weather, but it is difficult to say objectively whether they are more dangerous than other events such as hurricanes.
No. EF5 is the strongest tornado on the Enhanced Fujita and therefore the most dangerous type.