Question

finding bombs in germany during world war ii, american and british forces dropped millions of tons of bombs on german cities. nearly ten percent of the bombs never exploded. the war ended in 1945, but more than two thousand tons of unexploded bombs are still found in germany each year. before any construction project is undertaken, the site must be checked for unexploded bombs. buried bombs are often discovered. for this reason, germany has a special force of firefighters and police officers, called the kmbd, to defuse and remove these bombs. even though the war has been over for seven decades, the kmbd is one of the busiest bomb squads on the planet. what is the main, or central, idea of the passage? because there are so many unexploded bombs in germany, the country has a special force trained to defuse them. because there is so much construction in germany, the country has a special force trained to defuse bombs. almost ten percent of the bombs dropped on germany during world war ii never exploded.

Explanation:

Para determinar la idea principal, analizamos el contenido: el texto explica que en Alemania hay muchos bombas no explotadas, por lo que existe un equipo especial (KMBD) para desactivarlas. La segunda opción menciona la construcción y la fuerza especial, pero la tercera se centra en la razón de la fuerza especial (las bombas no explotadas) y cómo la KMBD las desactiva. La primera es un detalle. La idea principal gira en torno a que debido a las bombas no explotadas, Alemania tiene esa fuerza especial.

Answer:

Because there are so many unexploded bombs in Germany, the country has a special force trained to defuse them.