Answer: 
SI system consist of standard units of measurement that are defined by International System Of Units.  
Explanation: 
SI stands for Standard International. It consist of total 7 units that are accepted internationally,  
  Two advantages of  SI units are:
- SI unit is rational system of units, that means one unit denotes one physical quantity.
- SI units are internationally accepted which makes researchers and scientist calculations 
 
        
             
        
        
        
Answer:
There are many reasons why manned space probes to Saturn are simply  unachievable. Getting to space is incredibly hard. The force of gravity is very hard to escape. If you wanted to, you would have to invest trillions upon trillions of dollars to create a space shuttle that may or may not explode. Second, we simply don’t have the technology to make it that far with a manned probe. Saturn is more than a billion miles away. It would take more than several years to go that far. To keep astronauts alive, entertained, and sustained is also a big challenge. In conclusion these are some reasons why a manned space probe to Saturn is unachieveable.
Explanation:
U’d better give me that brainly.
 
        
             
        
        
        
Vitamin A because of the nutrient value per serving is 40% (the highest).
 
        
             
        
        
        
Answer:
In metaphase ll, the chromosomes line up in the middle of the cell
Explanation: