Answer:
A. The magma cooled too quickly too quickly for gas to escape.
Explanation:
Scoria is a type of extrusive igneous rock. Some of their characteristics include that they cool quickly with no time for large crystals to form, some of them have large vesicles which are holes caused by gas bubbles when the lava was molten.
 
        
             
        
        
        
Hydroxyapatite is the major component of bone that contributes to its hardness.
        
             
        
        
        
Answer:
The marine industries affected the marine life and ocean water in many ways. When carbon dioxide dissolves in seawater, the water becomes more acidic and the ocean's pH drops. In the past two hundred years alone, ocean water has become 30 percent more acidic and faster than any known change in ocean chemistry in the last million years.
Hope it helps!
 
        
             
        
        
        
<span>Basal Body Temperature (BBT) is the body temperature upon waking up
or when a person is at rest. After ovulation, a woman’s BBT rises because of increase in
progesterone level. BBT swill stay high throughout the post-ovulation phase and
until the following cycle. If there is pregnancy, BBT will stay high.</span>
 
        
             
        
        
        
Answer:
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