Answer:
Solar phenomena are the natural phenomena occurring within the outer atmosphere of the Sun. These phenomena take many forms, including solar wind, radio wave flux, solar flares, coronal mass ejections, coronal heating and sunspots.
 
        
                    
             
        
        
        
Answer:
The correct answer is Plinian eruption.
Explanation:
Pyroclastic flows are all secretions combined with robust materials and gases. The speed of pyroclastic flows on the number of solids and gases. A characteristic of pyroclastic flows is that they can produce a high degree of destruction when they erupt.
When talking about plinian eruptions, they refer to those characterized by volcanic ash in the stratosphere, and their gas eruptions are powerful.
<em>I hope this information can help you.</em>
 
        
                    
             
        
        
        
The correct answer is secondary structure of proteins is formed by the hydrogen bonding between amino acid chains.
Explanation:
The secondary structure of protein is generally stabilized by peptides bond along with hydrogen bonding between hydrogen atom and an electronegative atom such as oxygen.
      The secondary structure both alpha helix and beta pleated sheet are stabilized by hydrogen bonding beside the presence of peptide bonds.
CREDIT: Pandeyarindam296
 
        
             
        
        
        
<h2>Explanation:</h2>
Membranes are semipermeable lipid bilayers. Permeability refers to the ease with which molecules cross biological membranes. Because of the chemical and structural nature of the phospholipid bilayer (hydrophobic core), only lipid-soluble molecules are able to freely pass through the lipid bilayer because it attracts these non polar molecules.
Water soluble or hydrophilic molecules cannot pass through these lipid membranes because hydrophobic bilayer repels hydrophilic molecules. Ions and large polar molecules cannot pass through the lipid bilayer.  
But more specifically, whether a molecule can pass through the membrane depends on its size and its electrical nature.
 
        
        
        
Answer:
here you go...
Explanation:
Lizards have a large number of very tiny hairs on the pads of their feet called setae. These tiny pads therefore drastically increase the surface area and come in intimate contact with the surface on which the lizard is crawling, so the Van der Waals forces kick in.