<span>Vitamin D.
Vitamin D is made from 7-dehydrocholesterol and needs UV light in order to be activated. Because the children are not exposed to sunlight, they are receiving insufficient UV light.</span>
1. Energy from the sun is transferred to earth's surface. Some of that energy is then transferred to the air above the surface.
2. The closer a location is to the equator the more energy it receives from the sun. Therefore a location's air temperature is affected by its distance from the equator.
3. An effect my have more than one cause. These may be linked into a chain of effects and causes.
Answer:
One choice should be “exponential growth curve”, choose that. If you could post a pic of the remaining options, I'll try and solve it for you further.
4. Peas gave characteristics that have two forms
