the movement about which geographers talk usually refers to

people, goods, and ideas

birthrates and death rates and family size

environmental changes

relative locations of places on the earth

people, goods, and ideas

Explanation:

Geographer is the professional whose field of study is the interaction between the various space systems. Systems that can be social: people , economic: goods , political: ideas, geological, biogeographic etc.

The movement or things which usually forms the platform for the geographers are people, goods and talks.

Option A

Explanation:

Geographers talk about mostly on the atmosphere and Earth as a general broader concept runs, but it is most connected with the human activity. When human activity is taken into consideration, it envisages the people, their goods and their activity with their ideas.

Therefore, geography is the physical features study with human activity involved. The distribution of resources and populations according to the political activities and its economy, is all about geography.

seismic wave -

an elastic wave in the earth produced by an earthquake or other means.

explanation: