How did the war in Afghanistan change the ussr economy?

Soviet Afghan war economic impact

The Soviet Union had significant economic engagement with Afghanistan prior to 1978. The USSR had built Afghanistan's main roads and, by 1978, provided more than $1.2 billion U.S. in economic aid. After the invasion, the core Soviet strategy to stabilize the regime was to build the capacity of its security forces.

Explanation:

i think the answer is c, rivers.

explanation:

sometimes, borders fall along natural boundaries like rivers or mountain ranges. for example, the boundary between france and spain follows the crest of the pyrenees mountains. for part of its length, the boundary between the united states and mexico follows a river called the rio grande. the borders of four countries divide africa’s lake chad: niger, chad, cameroon, and nigeria.

i thinl it is the 1st answer