Segun mark kurlansky quien causa el problema//according to mark kurlansky who causes the problem

explanation:

the president, prime minister, chief justice, speakers and ministers take their oath of office. the oath is taken in bengali

health and medicine because people are dying from not being healthy or not strong enough medicine

payments were made after the 1940s.

in the 1980s, a commission held investigations and made recommendations.

the steam engine.

the locomotive.

the telephone.

the telegraph.

the internal combustion engine.

the rifle.

ironclad ships.

electricity/light bulb.