Answer:
no no no who are these some look good but are black what is this
Answer:
b.
Explanation:
Cation and anion.
For example Na+ and Cl- -----> NaCl.
Answer:
Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves. It has also been documented for more weathering-resistant rocks, such as quartzite, given the right conditions.