Answer:
Covalent
Explanation:
Covalent is the sharing of electrons and Ionic is transferring of electrons.
The correct answer is option B. The most dense phase of matter is the solid phase and the least dense are gases. However, there is an exception. Water is the exception. Solid water or ice is less dense than the liquid phase therefore it floats on liquid water.
Answer:
c. It generates changes in the magnetic field of Earth.
Explanation:
please mark this answer as brainlest
Often, the rock layers bookending the mass extinction are noticeably different in their compositions. These changes in the rocks show the effects of environmental disturbances that triggered the mass extinction and sometimes hint at the catastrophic cause of the extinction
