Ik that u would do it from a ship, and i also know that they could send a diver down there or they could send the crane arm down there with a scoop from the ship and pull up some sand and use that as a sample
        
                    
             
        
        
        
Answer:
B. Protein is composed of DNA which is produced in the cell
Explanation:
 
        
                    
             
        
        
        
Global warming causes increase level CO2
        
                    
             
        
        
        
Answer: D is right
Explanation:   It seems both waves have same wavelength.
Because speed = wavelength · frequency  (v = λf)  and
 f = v/λ, so frequency is same.  Because period T = 1/ frequency, also periods are same.  Wave Y has higher amplidude and its energy is greater.
 
        
             
        
        
        
Answer:
I'm glad you asked!
Explanation:
Since there is no common ancestor ,that makes the structures analogous or  structures that evolved independently in two living organisms to serve the same purpose.