Answer: Chemical weathering changes the composition of a rock, while physical weathering does not.
Explanation: The definition of a chemical change is a change that cannot be reversed and is caused by a chemical reaction. In this case, a chemical change to a rock would change the composition of the rock while physical changes may change the appearance of the rock, but not the composition.
 
        
             
        
        
        
Answer would be <span>damage to the nerve cells in the spinal cord.
The spinal cord is responsible for sending nerve signals throughout your whole body. Damage to the spinal cord can result in an inability to send signals to parts of the body, including simple reflexes.
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Explanation:
Agricultural productivity is dependent on Co2, Temperature, Solar Radiation, Precipitation, Soil Moisture and Wind Direction. Changes in any or all of these elements has a direct impact on the crop production
 
        
             
        
        
        
The transfer of antibodies from a mother to the fetus. This occurs naturally, and since it is the transfer of antibodies, it is passive immunity. 
        
             
        
        
        
An Independent variable is a variable that changes or is controlled during an experiment, so according to this information your correct answer will be A) the coconut juice.