Which substance can be broken down by chemical means

1. Ammonia  

Step-by-step explanation:

Ammonia, NH₃, is a compound of nitrogen and hydrogen.

Thus, it can be broken down by chemical means into the elements nitrogen and hydrogen.

The other options are wrong, because Al, Sb, and Pb are elements. They cannot be broken down chemically into simpler substances.

a. a clone will be physically identical to the original, but won’t be genetically identical

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passed in september 1935, these laws are known as nuremberg laws.   they forbid jews from marrying but not directly forced them to divorce aryans. what is most noticeable is the fact that the jews were defranchised, meaning by this that they were not expected to have any civil rights, including the right to vote. the right answer is deprived of the right to vote.