natural disasters
what causes a tornado
hot and cold air collide
what is in the middle of most galaxy's
a black hole
how many types of energy are there
6
2+2
4
how does a tsunami occur
a bomb or a earthquake in the ocean
what happens when 2 blackholes collide
what happens when water freezes
it forms ice
most common 2d shape
square
what are water spouts
tornadoes that form over water
when was the universe created
13.7 billion years ago
what happens if your body is exposed to radiation for a period of time
radiation poisoning
4 times 100
400
how many types of earthquakes are there
2
what galaxy is closest to the milky way
Andromeda
what was the worst nuclear meltdown in history
Chernobyl
how many letters in encyclopaedia
13
what is the middle of a volcano called
central vent
what is the closest planet the could hold life
Proxima Centauri
what is nuclear fusion
the process by which two light atomic nuclei combine to form a single heavier one while releasing massive amounts of energy
how many sides in myriagon
10,000