They are singular because mathematic and mathematics are the same thing, as well as physics; It's not like there are physic and physics.
I believe the best answer for this question is "entropy." Entropy is a scientific term referring to thermodynamics. It measures both the order and the disorder of a system. Order, or disorder, are both defined by how close the system is to equilibrium. Hope this helps. Also, keep in mind to ask questions in the proper category - this would be most suited to science, rather than English. Thanks.
Answer:
Which sentence below is NOT written correctly?
Mr. Singh's address is 4002 Airway Boulevard, Apartment 25.
<u>Deliver the refrigerator to Mr. Singh, 4002 Airway Boulevard, Apartment 25. </u>The refrigerator should be delivered at Mr. Singh at 4002 Airway Boulevard, Apartment 25.
Mr. Singh lives in apartment 25 at 4002 Airway Boulevard.
Explanation:
One reason that Thomas Paine thinks the colonies stand a good chance against the British is because if the colonies declare independence, then they become enemies of the British. Therefore, they are no longer enemies of the colonists, and that they can work with other countries.