He might be dehydrated, give him some cool water to drink and let him rest a little before getting treated.
        
             
        
        
        
2019 years have humans been on earth
 
        
                    
             
        
        
        
Answer:
antibiotics
Explanation:
pesticides have to do with nature and killing bugs, weeds, etc. Irrigation has to do with watering plants and people. Trucks are vehicles that transport. Antiobiotics help kill bad bacteria in your body when your sick, so that's health related. 
 
        
             
        
        
        
The starting molecule is ATP