Why do the polar regions experience extended periods of daylight and darkness

The tilt of the earth points the poles away from the sun in alternate seasons. The sun never rises in the winter at the North Pole nor sets in the summer. The opposite is true at the South Pole.

first industrial revolution - the first wave of the industrial revolution lasted from the late 1700s to the mid-1800s. it industrialized the manufacture of textiles and began the move of production from homes to factories. steam power and the cotton gin played an important role in this period.

the supreme court can hear any case it wishes as long as four justices agree to hear it.

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