I think the Answer is Internal combustion engines differ in a fundamental way
The questions is asking to state and choose among the following choices that states the statement about gases that is true, base on my further research and investigation, I would say that the answer would be that <span>Gases have no fixed mass and no fixed volume. I hope you are satisfied with my answer </span>
SO Egypt.... Egypt started thousands and thousands of years before anyone, somewhere around 5000-3000 BC. One of the first major civilization but it came to a end when Rome took over Europe and half of the known world and after Rome fell in 476 AD Egypt was never mentioned in any history books... So the "New Kingdom" fell due to Romans and since they had no armies to defend themselves.
Hope this helps :)
The sectional crisis among the southern and the northern states was how to incorporate vast territories in the nation and whether states would be slave or non slave.
<u>Explanation:</u>
From the time of 1848 to 1860, there were sectional crisis in the United States of America. The problem was how to inculcate vast territories in the nation after the end of the American Mexican war. Moreover the political tension was that whether the states would be slave or non slave.
The southern states favored the slavery as a fact of life while the northern states were against slavery and wanted better and equal lifestyle for the slaves also. Moreover the northern states were rich and the southern were poor and had lesser number of factories compared to north.