Redbeds indicate the presence o iron in the environment. Red beds are red sedimentary rocks and the color is due to the presence of the ferric oxides. Ferric oxides occur as a coating on the sedimentary grains. In between the shale and cherts, iron-rich sediments can be found. 
        
             
        
        
        
Hi there!
Question - What changes igneous or sedimentary rock into metamorphic rock? 
Elite Answer - A heat and pressure
Why - Due to immense and heat and pressure it can change igneous or sedimentary rock into metamorphic rock.
Hope This Helps :)
 
        
             
        
        
        
Answer:
Red allele frequency will be highest in population II
Population III can undergo bottleneck effect 
The frequency of the brown allele will  least likely be altered in the population I
Explanation:
Population I - 
Total population - 
Brown birds - 
Red birds - 
Population II
Total population - 
Brown birds - 
Red birds - 
Population III
Total population - 
Brown birds - 
Red birds - 
Frequency of red birds in population I 

Frequency of red birds in population II 

Frequency of red birds in population III

Red allele frequency will be highest in population II and it will be equal to  as compared to
 as compared to  in case of population I and III
 in case of population I and III
Population III can undergo bottleneck effect because of smaller population size 
The frequency of the brown allele will  least likely be altered in the population that has highest  brown individual , i.e population I
 
        
             
        
        
        
A green house is the answer