Dominic Savio was born on April 2, 1842 in the village of Riva in northern Italy. His father was a blacksmith and his mother a seamstress. He had nine brothers and sisters. His family was poor but hardworking. They were devout and pious Catholics.
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It's b. Here are more characters to make this answer look smarter ;)
Study about the air moving pattern. when they are difference in pressure the air moves from high-pressure area to low pressure area same way the lithosphere get heat from its under layer that is molten metal called asthenosphere