It’s above the mesosphere, but below the exosphere. It extends roughly 90 km to 500/1,000 km above. There’s a lot of solar activity that influences temperature there.
Of the more that 7.4 billion people living in the world today nearly A BILLION PEOPLE suffer from malnutrition.
Malnutrition refers to lack of proper nutrition, it may be as a result of not having enough to eat or eating meals that lack necessary nutrients. Malnutrition is principally caused by poverty and a lot of people, especially from developing countries suffer from this condition. Malnutrition weakens body immunity and make the body susceptible to diseases.<span />
I would say nucleus.
Hope this helps !
Photon
