1. incomplete question 2. is most likely from a quiz/test/exam
Answer:
Abstract words refer to intangible qualities, ideas, and concepts. These words indicate things we know only through our intellect, like "truth," "honor," "kindness," and "grace." Concrete words refer to tangible, qualities or characteristics, things we know through our senses.
Explanation:
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Let points a (1,2), b (-3,0), c (0,3) calculate Ab: Ac as a function of the unit vector.
Answer:
In antiquity, systems of measurement were defined locally: the different units might be defined independently according to the length of a king's thumb or the size of his foot, the length of stride, the length of arm, or maybe the weight of water in a keg of specific size, perhaps itself defined in hands and knuckles.
Systems of Measurement: there are two main systems of measurement in the world: the Metric (or decimal) system and the US standard system. ... The US Standard system uses units that have no predictable relationship to each other.
Explanation:
For example, there are 2 cups in a pint, but 4 quarts in a gallon.
The work describes Thoreau's thoughts over the course of a year spent immersed in the natural world is the answer.