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.
I would say that being anti-racist does not describe America after the abolition of slavery. For decades, up until maybe the 60's African American's were mistreated with things like Jim Crow Laws, that were stopped some time in 1964. While this had ended segregation it most definitely did not end racism. Even now hate groups, like the KKK, are very prominent in America, with over 1,000 recorded in 2018.
When comparing the GDPs, Instead of saying compared it to, you might want to type, "in comparison." A few transition words also might help the piece become a bit smoother. Other than that, good job on the writing! It seems very well researched!
Answer: The answer is write infront of you face ! A
I would say A because going off the text it shows he is rushing for the station, for what? we do not know, so you must asume, so I believe it is A.