Luray Caverns in Virginia is a cavern that formed from water moving down into limestone rock below ground and forming calcite formations. This is an example of . A. Erosion
B. Mechanical weathering
C. Water erosion
D. Chemical weathering

Can you please be specific? Thank you!

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass

How are fossils most commonly formed

You are given an electron micrograph of a bacterial cell. in the micrograph you can clearly see three thin layers of different densities surrounding the cell. based on the micrograph, you can infer that this cell is and would appear after application of the gram stain procedure. gram-negative / pink gram-positive / purple gram-positive / pink gram-negative / purple