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.
D)Heat within Earth
Explanation:
The heat from within the earth is as a result of plate tectonics. Plates on the earth are driven by heat within the earth through convection currents.
- Plate tectonics suggests that the earth are broken into slabs that moves on the weak and ductile material called asthenosphere.
- Heat from within the earth causes the melting of asthenosphere.
- The riding lithosphere which is cold will sink into the asthenoshpere.
- Hot mantle materials will move to the surface thereby setting up a convection current.
- Heat from within the earth rises to the surface due to plate movement.
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Lithosphere brainly.com/question/9582362
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I think it might be sampling
