Radioactive uranium-235 has a half-life of about 700 million years. Suppose you find a rock and chemical analysis tells you that only 18 of the rock's original uranium-235 remains. How old is the rock?.

Which the following is a common trait in a four year college

Explain how you might determine the rate of weathering on a sample rock

If the cost of a typical market basket is 400 in 2018, 410 in 2019, and 405 in 2020, then during this period the economy is undergoing: question 11 options: a) inflation. b) hyperinflation. c) deflation. d) disinflation.