"Secretes excess water as sweat" is the one role among the following choices given in the question that the <span>skin play in the excretory system. The correct option among all the options that are given in the question is the first option or option "A". I hope that the answer has actually come to your help.</span>
        
                    
             
        
        
        
Answer:
Saliva contain enzymes.
Explanation:
In the mouth, when chewing a bite of bread, it mixes with the saliva in the mouth which is secreted by the salivary gland. The food is broken down by chewing which is converted into Bolus through the saliva. The saliva comprises of digestive salivary amylase which help to digest carbohydrates and breakdown carbohydrates into smaller pieces.
Bread is a carbohydrate, digestive salivary amylase breakdown bread into sugars.
Therefore, digestion begin from the mouth and it contain saliva which comprises of the enzymes.
 
        
             
        
        
        
Answer:
Physical trauma, acute disease, chronic disease, infectious disease and emotional trauma.
Explanation:
Physical trauma, acute disease, chronic disease, infectious disease and emotional trauma are the ways from which health should be affected by happening of natural disasters such as earthquake and cyclones. We are able to predict the weather with the help of satellites that monitors the movement of clouds on the earth atmosphere. Advancement of technology is the main reason which enable us to predict the weather conditions as well as the coming of cyclones in a specific region.
 
        
             
        
        
        
Answer:
Universe
Explanation:
This should go to physics category 
The big bang theory is derived from the observed universe, and the microwave background signal that arrived to earth...