Answer:
i think its A. increasing research to find alternative natural resources for the future
 
        
                    
             
        
        
        
It may be an engine cooler, or it may be for the boats speed
But I think it is for cooling the engine down
        
             
        
        
        
Answer:
The color of water is measured by comparing the water to platinum cobalt color standards representing APHA Standard Color Units. Tests 0, 20, 50, 80, 110, 140, 170, and 200 APHA color units
Explanation:
 
        
             
        
        
        
Answer:
The energy yield for one gallon of ethanol is 2.473 %.
Explanation:
The net energy yield ( ), expressed in percentage for one gallon of ethanol is the percentage of the ratio of the difference of the provided energy (
), expressed in percentage for one gallon of ethanol is the percentage of the ratio of the difference of the provided energy ( ), measured in Btu, and the energy needed to produce the ethanol (
), measured in Btu, and the energy needed to produce the ethanol ( ), measured in Btu, divided by the energy needed to produce the ethanol. That is:
), measured in Btu, divided by the energy needed to produce the ethanol. That is:
 (1)
 (1)
If we know that  and
 and  , then the net energy yield of 1 gallon of ethanol:
, then the net energy yield of 1 gallon of ethanol:


The energy yield for one gallon of ethanol is 2.473 %.
 
        
             
        
        
        
Answer:
15 000 000 Ohms
Explanation:
1 Mega Ohm = 1 000 000 Ohms
So,
15 Mega ohms =15 000 000 Ohms