Which of these examples is reflective of the role of the united nations?
o
bringing food to tsunami victims in indonesia
o
bringing to trial international war criminals on human rights charges.
o
establishing protected environmental reserves
o
all of the above

All of the above examples are reflective of the role of United Nations.

United Nations is an international organization that aims to promote humanitarianism internationally. It maintains peace and security, promote friendly relation between nations, international cooperation, and etc. It is one of the influential and popular organization in the world.  

It was established after World War II to promote peace and prevent further battles. UNDP which is a development programs works in 170 countries for poverty alleviation. UN is also involved in other agencies, programmes and funds. Other development programs include environment, habitat, population fund, etc.

because the two particles have an equal charge, the charges will cancel out and give the atom an overall charge of 0. so, if at atom has 35 protons in the nucleus, we could expect it to have 35 electrons orbiting that nucleus.