China has a population of ? a. about 100 million b. about 500 million c. more than 1 billion d. more than 1 trillion

Why might have people followed the rivers to find their way into asia

Compared with the land in the highlands, the lowlands region of england a) rockier and more difficult for farmingb) the center of business and industryc)richer in coal reservesd)covered by more fertile farmland d) covered by more fertile farmland

Pythagorean theorem what is the value of x? x = 2 sides are 8 and 10