See related questions below.
Natural hazards: volcanoes cause many deadly conditions, rivers flood, oceans surge, weather(too hot/cold), hail can kill/injure, wind can blow you into/off of things, lightning (direct hit/fire)...
Human causes: one of the worst, Bophal, India, thousands were killed, many more are still suffering today. (Google that)
I "copy and pasted" this from related questions...
3. Look at the upper-right-hand corner for the SEARCH box. Enter Life Orientation and have access to many posts on the same question.
# Life Orientation - Chakes, Thursday, July 28, 2011 at 5:24pm
People fertilize the soil with chemicals that are therefore wiped into the river during rain,this chemicals comes to our bodies together with the water that we drink in everyday lives and damage our bodies,then we become ill.They are also absorbed by the crops we plant,then when we eat we get ill.The statistic says that about 90% of the people in south Africa contribute in this problem.
I always learn from mistake of others hu took my advise...lol tat a great answer
Newton law of love..love cnnt be crtd or dstryd bt transfrd frm 1 gf to anthr wth los of money