Suppose you found a rock, and through testing found out that it had just as much lead-206 as uranium-238 in it. How old would you conclude the rock to be?

The answer is below

Explanation:

Let m be the mass of each of lead-206 and uranium-238 found in the rock. The radioactive decay is given as:

half life of uranium-238 = 4.468 * 10⁹ years

λ = 0.693 / half life = 0.693 / 4.468 * 10⁹ years = 0.1551 * 10⁻⁹

i am positive it is c. condensing but i may be wrong

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation: