A key discovery underlying Marie Curie's hypothesis about radium was that:

A) Pitchblende emits less radiation than pure uranium.
B) Thorium emits more radiation than pitchblende.
C) Pitchblende emits more radiation than pure uranium.
D) Pitchblende emits more radiation than radium.
E) Radium emits more radiation than thorium.


C

Philosophy & Belief

You might also like to view...

Which of the following is true of a regulatory approach to environmental problems?

A) It proceeds on a case-by-case basis, dealing with each company's specific circumstances. B) It gives companies an incentive to do more than the minimum required by law. C) It requires the EPA or other body to determine the most effective, feasible pollution-control technology for each different industry. D) It involves the use of pricing mechanisms.

Philosophy & Belief

The subtheme in Genesis is humankind's special place in __________

a. creation b. fate c. God's plan d. the universe

Philosophy & Belief

What is the primary feature that characterizes the prophet, Zechariah, and the book that bears his name?

A) visions B) persecution C) martyrdom D) oracles against the nations E) symbolic actions or sign-acts

Philosophy & Belief

The most reliable witness to Jesus in Jewish literature is found in:

a. Didache b. Testimonium Flavianum c. Talmud d. Mishnah

Philosophy & Belief