The  coefficient  for hydrogen  in  the  balanced  equation   of solid  molybdenum(iV)  oxide  with gaseous  hydrogen  is  2
  Explanation
 Coefficient    is defined  to  as  a number  in front   of a chemical formula in a  balanced chemical equation.
    The  reaction   of   molybdenum (iv) oxide  with  gaseous  hydrogen  is  as below,
MoO2  + 2 H2→  Mo  +2 H2O
From   balanced equation above  the  coefficient   for  H2  is  2   since  the number in  front of  H2  is 2
 
        
             
        
        
        
Answer:
A.  Herbivores have longer digestive systems than carnivores have.
Explanation:
We can conclude that the herbivores have longer digestive systems compared to carnivores. 
Carnivores feeds on other animals whereas herbivores eats plants. 
- Most herbivores have a four stomach compartment system that helps them process and digest their food. 
- This is because they have to process cellulose in plants which needs to be properly broken down. 
- Flesh eating carnivores do not require this arrangement. 
- The four stomach compartment of most herbivores includes Rumen, Reticulum, omasum and abomasum. 
- They also chew the cud whereby they regurgitate food materials. 
 
        
                    
             
        
        
        
Answer:
can you provide more to the question 
Explanation: