Answer:
the particles of solid silver at room temperature are closer together and are colliding with each other more often therefore making it a solid. the particles of liquid water at room temperature are further apart and don't collide as often and have more room to move.
 
        
             
        
        
        
Answer:
The measures which is taken by country need to prevent global warming are given below. 
1) The government of the country should planted more trees because plants are only organisms which reduces the concentration of harmful gases which causes global warming. 
2) Reduce the use of fossil fuels such as petrol, coal and methane gas. 
3) Use solar energy instead of fuel for the production of electricity and other industrial products. 
 
        
             
        
        
        
Answer. True
Explanation:
When water freezes, water molecules form a crystalline structure maintained by hydrogen bonding. Solid water, or ice, is less dense than liquid water. Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density.
 
        
             
        
        
        
Answer
           The common name of Lucy is Southern ape, while their scientific genus name is <em>Australopithecus afarensis</em>.