It is d 
Explanation: 40/30=0.75 because there are 40 flowers in total and only 30 are red so the % of there being red flowers is 75% or 0.75 (same thing)
        
                    
             
        
        
        
Answer:
D. There will always be waste produced that can be used for energy.
Explanation:
Biomass energy is a renewable energy source because its does not have limited supply. We can always grow trees and crops, and waste will always exist. 
 
        
                    
             
        
        
        
Answer:
The higher biodiversity in an ecosystem means that there is a greater variety of genes and species in that ecosystem.
Explanation:
 
        
             
        
        
        
Answer:no it would be a flood
Explanation: