What is The element in group 4 and period 3.

__ _ _ _ _ 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 happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from