Answer:
-35 degrees F
When mixed in equal parts with water (50/50), antifreeze lowers the freezing point to -35 degrees F and raises the boiling temperature to 223 degrees F. Antifreeze also includes corrosion inhibitors to protect the engine and cooling system against rust and corrosion.
 
        
             
        
        
        
Answer:
The world wars. Most notably world War II
Explanation:
The demand for aircrafts during these events led to extensive research into the design of aircrafts. Aircraft advanced within these years from a simple design to a more complex design; capable of carrying fire power and even became bomb equipped. Also, the material of choice of production moved from wood to metal and the engine was improved on to gain more speed and maneuverability. 
 
        
             
        
        
        
Answer:

Explanation:
g = Acceleration due to gravity = 
h = Height of reading = 12 cm
 = Density of water = 
Pressure due to height difference is given by

The pressure differential is 
.
 
        
             
        
        
        
Anyone really , but you must be enrolled in an agriculture course at your school.