Question

Which property of matter allows convection currents to form?

Fluids rise if they are less dense than the matter around them.
The molecules in solids do not vibrate very quickly.
Electromagnetic waves carry energy.
Liquids take the shape of their container.

Answer 1

hey see I'm here

Answer 2

http://en.wikipedia.org/wiki/Alpha_particle

Answer 3

i think its D hby?

Answer 4

correct

Answer 5

medal please

Answer 6

thanks

Answer 7

any more questions

Answer 8

im gonna post more :)

Answer 9

ok open a new Question

Answer 10

thanks