In one paragraph, name two specific challenges that people on the Balkan Peninsula face. What is a cause of
these challenges?

One of them are bad economical position of most of the countries and the second one is nationalism that led to many wars in recent years.

Explanation:

Most of the Balkan states are post-communist societies, that are very undeveloped, especially when compared to  other European states. Some of them, such as Albania, Montenegro, Serbia, North Macedonia are not even a part of EU which makes their economies even weaker, as they don't have opened marker.

Another great problem is nationalism, often strengthen by the religion. During the 90s even wars were led, especially on the soil of Ex-Yugoslavia that are still troubling these societies.

~kinetic ~potential

explanation:

kinetic and potential energies would be types of mechanical energies.

no because it could make the world a terrible place to live in.