Which statement best describes radon?
a. a radioactive gas emitted from the Earth's crust
b. an odorless, colorless gas that is a major source of pollution
c. carbon-based source of energy derived form the deposits in the Earth
d. an extremely reactive form of oxygen that is a major constituent of smog
Question 2
Common conditions that lead to lead poisoning include all of the following except:
a. older homes with dilapidated lead paint.
b. eating paint chips that contain lead.
c. ingestion of household dust that contains lead.
d. drinking water that has passed through corroded plumbing.
Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T
Earth Science is Environmental Science
Erosion and Resulting Isostatic Adjustment of the Crust
Radon-219 decays to radon-218 by releasing:
Radioactive Decay
Earth’s Early Atmosphere