they are so unique and seen often
 
        
             
        
        
        
On the earth surface
Explanation:
The long-wavelength radiation is created on the earth surface when electromagnetic radiation is re-emitted. 
- The sun releases radiation in form of short-wave. 
- They are usually more energetic and with short wavelength and a high frequency. 
- When they interact with materials on the earth, they are radiated back as long-wavelength radiation that usually causes heat. 
- Ultraviolet rays and other high energy waves are emitted from the sun because it is a very hot body. 
- When these radiations enters the earth, they are re-radiated back as long waves with lower energy. 
- Earth is cooler than the sun
- When some of the short waves for example, the ultraviolet rays gets to the surface, it is absorbed and re-radiated back. 
- When the short waves are absorbed, they lose some of their their energy to the earth surface. 
- The remainder is radiated back as less energetic long waves. 
- The hotter a body is, the more energetic the radiation it releases. 
learn more: 
Electromagnetic radiation brainly.com/question/6818046
#learnwithBrainly
 
        
             
        
        
        
Answer:
Secondary level of protein structure
Explanation:
The proteins are formed of the monomer units called amino acids which bond with each other via peptide bond and form a linear peptide structure called the primary level structure of the protein.
The proteins to perform several functions in a cell undergoes structural conformation and attain the helical form called alpha helix due to the involvement of alpha carbon in bond formation and a pleated sheet called beta-pleated sheet due to the involvement of beta carbon. These structures are known as a secondary level of protein structure.
Thus, a Secondary level of protein structure is the correct answer.
 
        
                    
             
        
        
        
These energy exchanges are not changes in kinetic energy. They are changes in bonding energy between the molecules. "If heat is coming into a substance during a phase change, then this energy is used to break the bonds between the molecules of the substance. The example we will use here is ice melting into water.
        
             
        
        
        
Answer: Reducing energy use to extend the time we can use fossil fuels. I hope this helps out!!! :)