Which one displaces more water, one kilogram wood or one kilogram styrofoam? a)

Question

Which one displaces more water, one kilogram wood or one kilogram styrofoam?
a) It depends on the type of the wood and the styrofoam.
b) The styrofoam displaces more water.
c) The wood displaces more water.
d) They displace the same amount of water.

Which one displaces more water, one kilogram iron or one kilogram styrofoam?
a) They displace the same amount of water.
b) The styrofoam displaces more water.
c) It depends on the type of the iron and the styrofoam.
d) The iron displaces more water.

Please include an explination. Thanks!

Explanation / Answer

d) They displace the same amount of water.
when a body is not fully submerged it will displace water equal to its weight so both displace equal wate

b) The styrofoam displaces more water.
in this case iron will displace water equalto its volume so if we weight that amount of water it will be less than 1 kg but styrofoam does not submerge fully so it will displace 1 kg of water

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