The number of electrons in the outer shell determine its reactivity or tendency to form chemical bonds with other atoms.
        
             
        
        
        
Answer:
Coarse-grained, jagged, non-banded
Explanation:
 
        
                    
             
        
        
        
Answer:
xylem
Explanation:
xylem
The vascular system of plants has two transport tissues, called xylem and phloem. Xylem transports water and minerals, while phloem transports a variety of dissolved substances, including sugars and amino acids, throughout the plant.
 
        
                    
             
        
        
        
In Earthquake testing, the engineers are using the world largest shake tables to test new construction methods for buildings in the areas prone to the earthquake. 
<u>Explanation:</u>
They believed that they have the devised a system to build the taller wood-frame buildings that can still safely withstand even very powerful tremors. To withstand the collapse, the buildings need to redistribute the forces that travel through them during a seismic event. 
Shear wells, cross braces, diaphragm, and moment-resisting frame are the central reinforcing the building. Shear wells are the technology of the useful building. That helpful to transfer the earthquake forces.