Answer:
air 
Explanation:
Of the three phases of matter (gas, liquid, and solid), sound waves travel the slowest through gases, faster through liquids, and fastest through solids. 
 
        
                    
             
        
        
        
Answer:
Same phenotype but different genotype is possible due to presence of dominant allele
Explanation:
 A person can have a dominant allele on both the homologous chromosomes  while another person may have single dominant allele and a corresponding recessive allele.
 
        
             
        
        
        
I believe it is Carbon Dioxide. When we take in Oxygen, we breathe out Carbon Dioxide. 
        
                    
             
        
        
        
Answer: Studying botany helps companies develop more abundant food crops for less investment
Explanation:
The reasons for studying botany that is most directly related to increased profits was that "Studying botany helps companies develop more abundant food crops for less investment".
Since more food crops are gotten for less investment, it ultimately means that there'll be a reduction in the cost which will hence lead to an increase in revenue and therefore there'll be an increase in profit.