Answer:
65 L
Explanation:
It is assumed that the temperature is constant at both the sea level and the altitude. 
<em>According to the gas law, at constant temperature, the pressure of a gas is inversely proportional to its volume.</em> Mathematically:
 P1V1 = P2V2 where P1 = pressure at initial volume, V1 = volume at initial pressure, P2 = pressure at final volume, and V2 = volume at final pressure.
In the illustration, V1 = 15 L, P1 = 100 kPa, V2 =?, P2 = 23 kPa
V2 = P1V1/P2 =  100 x 15/23 = 65.22 L
<u>The volume of the hot air balloon at the altitude would be 65 L</u>
 
        
             
        
        
        
Answer:
Chronic obstructive pulmonary disease 
Explanation:
I'm not 100%  sure of what you're asking here but the main term for COPD is Chronic obstructive pulmonary disease. COPD is a long-term lung disease, which makes breathing especially difficult. I hope this helps:) 
 
        
             
        
        
        
The relationship between the lithosphere and the asthenosphere is that they both make up the earth's mantle. The asthenosphere lies right below the lithosphere.
Hope this helps!
 
        
                    
             
        
        
        
Answer:
cellular respiration 
Explanation:
Cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.