A risk or hazard is a possible danger.Hazards are obstacles that could cause one harm or misfortune.A road hazard,such as a sharp turn,is dangerous if you are not aware of it.A risk is a chance that one takes in a plan."You risk going outside on a cloudy day without taking an umbrella or rain coat." A risk is a possible threat or danger that may or may not happen.
For instance,in the sentence " Life is bound to risks of all kinds,for one can choke to death even on his own food" we use risk instead of dager.