I believe that in developed nations, the nutrients that are most lacking in a child's diet are the; calcium, iron and zinc. Zinc is needed for the activity of more than 100 different enzymes in the body and plays a role in the immune function. It aids in the maintenance of healthy immune function in kids and may reduce the frequency of mild upper respiratory tract infections. Calcium keeps the bones healthy and teeth thus supporting the skeletal structure and function. Iron is an important component of hemoglobin.
        
             
        
        
        
The estauries are characterized by mix of fresh water and salt water. That is option A
<h3>What is estauries?</h3>
Estauries is defined as the part of water where many rivers meet and sweep into the ocean.
The characteristics of estauries include the following;
- The salty water mixed with freshwater resulting to brackish water formation.
- The gradient of salinity in a semi-enclosed coastal system.
Learn more about brackish water here:
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Which feature is characteristics of estauries:
A mix of fresh water and salt water.
swap-like land.
region of land that drains into a body of water.
the gradient of salinity in a semi-enclosed coastal system.
 
        
             
        
        
        
Answer:a mscle which controls the body
Explanation: