Question

d) Wooden cork floats and iron nail sinks in wall.

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Answer 1

Answer:

A cork floats in water while the iron nail sinks because the density of cork is less than that of water.

Answer 2

Answer:

I think instead of wall there will be water....

so,your answer is

wooden blocks have less density then iron nail that's the reason that wooden Cork floats and iron nail sinks.....in water.....

Hope it helps!!!!.......