Question

Give reasons
A. An iron nail sinks in water, but a ship made of iron floats on it
B. Water is made to fall from a height to turn the turbine to make electricity
C. Water is called a universal solvent​

Answer 1

Answer:

because the pressure in iron nail is lesser than the pressure in iron ship

Explanation:

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Answer 2

Explanation:

a).As most of the space in the boat is taken up by air so it causes the overall density of boat to be lesser than that of water. Whereas, the density of the iron nail is more than that of water. Due to this the iron nail sinks while the boat floats on the surface of the water.

b)An opening in the dam uses gravity to drop water down a pipe called a penstock. The moving water causes the turbine to spin, which causes magnets inside a generator to rotate and create electricity

c)Water is capable of dissolving a variety of different substances, which is why it is such a good solvent. And, water is called the "universal solvent" because it dissolves more substances than any other liquid. This is important to every living thing on earth

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