Answer:
the plant population over time has decreased. this could make all other organisms above the plant population numbers decrease as well. 
Explanation:
 
        
                    
             
        
        
        
Answer:
ρ = 1.08 g/cm³
Explanation:
Step 1: Given data
Mass of the substance (m): 21.112 g
Volume of the substance (V): 19.5 cm³
Step 2: Calculate the density of the substance
The density (ρ) of a substance is equal to its mass divided by its volume.
ρ = m / V
ρ = 21.112 g / 19.5 cm³
ρ = 1.08 g/cm³
The density of the substance is 1.08 g/cm³.
 
        
             
        
        
        
Answer:
A molecular compound is usually composed of two or more nonmetal elements. Molecular compounds are named with the first element first and then the second element by using the stem of the element name plus the suffix -ide.
 
        
             
        
        
        
Answer:
D.  Food poisoning, Bacteria Vomiting, loose stools