Physical geographers study the landscape of different areas, so the correct answer would be:
A. Ecosystems and environments.
One goal of the Congress of Vienna was to restore power to <u>absolute monarchies. </u>
The Congress of Viena was celebrated between 1814 and 1815 and gathered many conservative European leaders who sought to design a long-term peace plan after the French Revolution and others derived from it and after the Napoleonic Wars.
<u>Apart from restoring peace, they aimed to restore former state formats,</u> as they did not support republicanism or other revolutionary principles. Therefore, <u>they wanted to return to absolutism and old regime</u> and they determined to create a joint army that would enforce such decision.