Answer:
both
Explanation:
 Carbon in the air around the living thing is moving in and out of its lungs. The movement is occurring at the same time. This is one of the most important gaseous exchange important to life. 
- The goats takes in oxygen gas from the surrounding and releases carbon dioxide in the process. 
 - But, air is actually drawn in by the goat which is a mixture of several gases. 
 - Air contains carbon dioxide which is a rich source of carbon 
 - With the carbon dioxide from respiratory processes, the goat ejects and breathes out this waste carbon matter. 
 - Therefore, the gaseous exchange in a goat involves the movement of carbon in and out of the air. 
 
 
        
             
        
        
        
Answer:
i think it was lll,lV ㄸㄸㅇㅊㅎㅍㅋ
 
        
             
        
        
        
Explanation:
chemical compound, any substance composed of identical molecules consisting of atoms of two or more chemical elements. All the matter in the universe is composed of the atoms of more than 100 different chemical elements, which are found both in pure form and combined in chemical compounds
 
        
                    
             
        
        
        
Answer:
May you post a picture for us to understand?
 
        
             
        
        
        
The heat used in phase changes is calculated by multiplying the mass of the substance by the energy of the phase change. In this case, for liquid to boil, we would find total heat by multiply the mass of liquid by the latent heat of vaporization (Hvap). If we are instead given the Hvap and the total heat of 1 kJ, we would divide 1 kJ by the Hvap (which is usually in kJ/kg) to get the mass of liquid boiled (in kg).