What are biodiversity hot spots? O A. Areas where large numbers of earthquakes and volcanic eruptions
occur
B. The warmest and driest ecosystems on Earth
C. Areas where the average annual temperature exceeds 40°C
O D. The richest and most threatened reservoirs of life on Earth

D  

Explanation: Yet biodiversity hotspots are, by definition, in a conservation crisis. To be classified as a biodiversity hotspot, a region must have lost at least 70 percent of its original natural vegetation, usually due to human activity. There are over 30 recognized biodiversity hotspots in the world

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.