Which area of geographical study involves examining different populations in the world, including their distribution and trade patterns?

The area of geographical studies that focuses on that I believe is Human Geography.

Human geography

Explanation:

The human aspects of the geography are dealt with the major branch of the geographic knowledge as under the human geography which includes the study of the demographic, economic, social and political aspects of the international world, and also includes the study of there geographical distribution their patterns of distribution or dispersal. It also focuses on there trading patterns ad thus relies on the geographical data of the nations and there economic consumption and production.

Ifound this on google “solar system formation. scientists believe that the solar system was formed when a cloud of gas and dust in space was disturbed, maybe by the explosion of a nearby star (called a supernova). this explosion made waves in space which squeezed the cloud of gas and dust.” i hope this you for what your looking for.

Themes; subfields is the answer