Question

Types of man-made and natural calamities at least 4 in man-made and 4 in natural calamities, it's urgent

Answer 1

natural:earthquake ,tsunami ,flood
man made:bomb blast ,terror attack

Answer 2

Okay. So the types (examples) of man-made disasters are very few and most of them are not literally disasters:
1. Nuclear explosions
2. Global Warming
3. Terrorism
4. Fires
5. Biochemical Warfare
6. Toxic Emissions
7. Smog
8. Oil Spill

And the Natural disasters are literally many;
1. Tsunami
2. Earthquake
3. Landslide
4. Tornado
5. Flood
6. Hurricane
7. Volcanic Eruptions
8. Drought