Carbon dioxide increases in the air when there is less photosynthesis because in photosynthesis oxygen is produced.
<span>B) indirectly, by the Electoral College
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A- because there are colder temperatures in the winter months in the northern states
The Mesopotamians developed a highly sophisticated mathematical system with a sexagesimal place-notation (a base of 60 whereas the present-day base is 10). This system included addition, subtraction, multiplication, division, algebra, geometry, reciprocals, squares, and quadratic equations.
