Speed of light is 3.0*10^8 
frequency = wavelength / speed 
= 1400 Hz
        
             
        
        
        
Answer is D
Explanation: A gamma ray primarily consists of pure energy and no mass.
        
             
        
        
        
The answer is force
sorry if i’m wrong
        
             
        
        
        
<span>The elements on the Periodic Table are arranged in order of increasing "Atomic number"
In short, Your Answer would be Option B
Hope this helps!</span>
        
             
        
        
        
Answer:
Bacteria are also involved in many processes that are indispensable for our life on Earth. Many of these processes have to do with the recycling (reuse) of chemical elements that have been here since the formation of the planet
Explanation:
I hope it will help you