Which of the following is true of the field of water resources engineering?

A. It focuses on the public’s water needs
B. It is the only field that deals with water
C. Stopping coastal erosion is its primary goal
D. It is only concerned with agricultural industries

How many pairs of chromosomes do human body cells contain?

Asequential circuit contains a register of four flip-flops. initially a binary number n (0000 ≤ n ≤ 1100) is stored in the flip-flops. after a single clock pulse is applied to the circuit, the register should contain n + 0011. in other words, the function of the sequential circuit is to add 3 to the contents of a 4-bit register. design and implement this circuit using j-k flip-flops.

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