What characterizes a radioactive atom? A. Its nucleus is unstable.
O B. Its nucleus has too few quarks.
O C. Its electrons gain energy.
O D. Its protons repel the neutrons.

__ _ _ _ _ is the process of removing earth materials from their original sites through weathering and transport and depositing the in another location. a. erosion b. sedimentation c. lithification d. dissolution

What’s the percent by mass of carbon in c10h14n2

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?