 is the intensity of the sound.
 is the intensity of the sound.
Answer: Option B
<u>Explanation:</u>
The range of sound intensity that people can recognize is so large (including 13 magnitude levels). The intensity of the weakest audible noise is called the hearing threshold. (intensity about  ). Because it is difficult to imagine numbers in such a large range, it is advisable to use a scale from 0 to 100.
). Because it is difficult to imagine numbers in such a large range, it is advisable to use a scale from 0 to 100.
This is the goal of the decibel scale (dB).  Because logarithm has the property of recording a large number and returning a small number, the dB scale is based on a logarithmic scale. The scale is defined so that the hearing threshold has intensity level of sound as 0.
                      
Where,
I = Intensity of the sound produced
 = Standard Intensity of sound of 60 decibels =
 = Standard Intensity of sound of 60 decibels = 
So for 19 decibels, determine I as follows,
                    
                   
                   
When log goes to other side, express in 10 to the power of that side value,
                   
                   
 
        
             
        
        
        
bvcdbcvfdnbgfbjdgfhdgfjghfjhvjbczdfsghdfshjdgfhdftgh
 
        
             
        
        
        
They have similar physical and chemical properties because of thier valence electrons
        
             
        
        
        
With the blocking of activation of clotting factors, the rate of conversion of fibrinogen to fibrin will decrease to a huge extent and this will prevent the clot formation.
Option A
<h3><u>Explanation:</u></h3>
The process of stopping of flow of blood through any wound by formation of a clot is known as blood clotting. The clot in blood is formed by conversion of the fibrinogen protein into its polymer form fibrin which forms a meshwork.
The conversion of fibrinogen to fibrin requires a lot of enzymes and factors present which is required one by one, known as the Cascade theory. Total of 13 factors are required, where there are prothrombin, thromboplastin, and different other factors. Inactivation of any of the 13 factors will lead to less conversion of fibrinogen to fibrin, thereby the rate of conversion will highly decrease.
 
        
             
        
        
        
The correct option to the question is Matter.
Matter makes up everything. matter can be solid, liquid, or gas. matter is made up of atoms, or tiny particles that are the smallest unit of matter.
Moreover, Matter can be described as,
Matter is anything that has occupies space (has mass and volume).
For more information visit:
brainly.com/question/13280491