The answer is D bc we humans need oxygen to breath.
The answer is <span>Play outside more
When we keep ourselves inside our home, our eyes would be adjusted to only see objects in near distance (such as books, laptop, tv, etc), which could disrupt our ability to see objects in far distance.
Getting used to play outside would prevent such occurrences from happening</span>
The idea of citizenship has expanded to include all people who fulfill certain criteria, and in principle anyone can obtain a citizenship of many countries if they work towards it thought the process of naturalization.
In the past, citizenship was often limited: it included only men (as in ancient Greece) or only certain ethic groups (as in the case of Early US).
