Visible light is the small part within the electromagnetic spectrum that human eyes are sensitive to and can detect. Visible light waves consist of different wavelengths.
<span>Delivering water to dry areas for growing crops</span>
The answer is B travel across physical boundaries
Without big farms to run, the people in the North did not rely on slave labor very much. In the South, the economy was based on agriculture. ... The North wanted the new states to be “free states.” Most northerners thought that slavery was wrong and many northern states had outlawed slavery.
Legalized gaming has had a tremendous effect on Mississippi during the first decade of its existence.
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Why gaming is so important in Mississippi?</h3>
The modernization of US cities has caused a reduction in overall river pollution. The development of large farms has polluted the river through waste runoff.
The use of the river for shipping has stayed relatively the same since 1800. The decrease in fishing in the river has led to a shortage of seafood products.
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