A heterogeneous mixture composes of non- uniform components, so the concrete would be the answer, because you can tell the components from one another.
        
                    
             
        
        
        
Answer:
fertilizers
Explanation:
Plants use nitrates as a supply of nitrogen, which is needed to make proteins for healthy growth. Plants absorb nitrates in water through their roots. Nitrates are present in high levels in plant fertilisers. Without nitrates, the amount of chlorophyll in leaves reduces.
 
        
             
        
        
        
Answer: p2 + 2pq + q2 = 1
p2 = homozygous dominant gene
2pq = heterozygous gene
q2 = homozygous recessive gene
 
        
             
        
        
        
Answer:
Transcription produces  ✔ mRNA
.
Translation takes place in the  ✔ ribosome
.
Explanation: