N-H bond in ammonia is polar because nitrogen is more electronegative than hydrogen.
Explanation:
Ammonia is a compound that contain nitrogen and hydrogen. It has a trigonal pyramidal i shape, the three hydrogen atoms and one nitrogen atom are covalently bonded together. The nitrogen atom is more electronegative and it attracts more electron to itself. The nitrogen atom is slightly negative and the hydrogen atoms are slightly positive, there is unequal sharing of electrons between the nitrogen atom and hydrogen atoms due to high attraction of electrons to nitrogen atom, this is what is refer to Polar molecule. A polar molecule I a molecule with unequal sharing of electron between the atoms.
Answer: A Civil Engineer benefits from the knowledge of physiology because it helps to effectively design buildings to fit human beings adequately. That is, the height of a doorway must effectively take most people.
Explanation: This is when we talk about Ergonomics, that is the environment must effectively fit the user.
