(1) what do you understand by the statement that relative density of aluminium is 2.7?
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The relative density of a substance is the ratio of its density to the density of liquid water, which is roughly 1000kg/m³

For example, the relative density of aluminum is 2.7, therefore it has a density of roughly 2700kg/m³

with the invention of the automobile, the woman of the house could drive to the store and get groceries. women were also free to socialize more. during world war ii women were allowed to work in factories to the war effort and could drive to work or ride mass transit buses to their jobs.

terd muffin is the correct answer