Answer:
liquid at room temperature 
mercury is an exception to that though
 
        
                    
             
        
        
        
C. reducing the amount of garbage
Explanation:
The biggest long-term benefit of building a city's recycling building is that it helps to reduce that amount of garbage. 
Recycling is simply the collection and processing of waste materials into new products that can be used again. 
- Waste recycling helps to reduce that actual proportion and percentage of materials to be considered waste. 
- The overall long term goal of any recycling procedure is to reduce the amount of garbage in the environment. 
learn more: 
Untreated wastes brainly.com/question/4080706
#learnwithBrainly
 
        
             
        
        
        
Answer:
750g of Aluminum
Assuming 8.6 cm lenth is the height of the cylinder. The volume of a cylinder is: V =  *r^2*h
*r^2*h
V = 3.14cm x 10.24cm x 3.6cm
V = 280cm^3
Now density = mass/volume
2.7g/cm^3 = mass/280cm^3
2.7g/cm^3 x 280cm^3 = mass/<u>280cm^3</u> x <u>280cm^3</u>
= 750g of Aluminum
 
        
             
        
        
        
It has four valence electrons