Answer:
Scaled structure
Explanation:
A concrete model is a model that is in fact a physical representation of something. The opposite is an abstract model, which is not a physical representation. Theoretical, conceptual, and computer models are all abstract models.
Scaled structure (scale model) is a three-dimensional physical representation of an object that preserves accurate relationships between all of its important aspects.
Answer:
hesitated
Explanation:
Because people needed proof that it was safe before trusting it
Part 1) The Civil War.
Part 2) he was a natural original secessionist meaning he was from one the states that withdrew from the union, and devoted to the “southern cause” and that they thought that the cause of the confederate states during the American Civil War were heroic, and not centered around slavery.
