Answer:
They developed many new techniques for buildings and invented, concrete,roman roads, arches, and aqueducts
Explanation:
A hypothesis must be testable in order to be termed a scientific hypothesis.
A hypothesis is almost a theory in that it needs to be tested in order to become a true scientific hypothesis. These tests have to be the same every time, meaning that the hypothesis has to yield the same results each time it is tested.
True because whatever your goal is you have to do everything in your power to do it and make it come true because this is something you what to do and is not going to give up no matter what
