The Bills that cannot be returned by the President to the Parliament for reconsideration are Money Bills.

So, the correct answer is:

(C) Money Bill and Constitutional Amendment Bill.

The means of measuring the humidity of the atmosphere are called hygrometers.

The conversion of ferric chloride (FeCl₃) to ferrous chloride (FeCl₂) is not specifically called "degradation." Instead, it is a type of chemical reaction known as a reduction reaction. In this process, ferric chloride (FeCl₃), which contains iron in the +3 oxidation state, gains electrons and is reduced to ferrous chloride (FeCl₂), where iron is in the +2 oxidation state. The reduction reaction involves the gain of electrons, leading to a decrease in the oxidation state of iron.

The term, 'Uniform Civil Code' is explicitly mentioned in Part 4, Article 44 of the Indian Constitution. Article 44 says, “The State shall endeavor to secure for the citizens a uniform civil code throughout the territory of India.”