(1) 3,000 km (2) 5,000 km (3) 6,300 km (4) 8,000 km 16. A seismograph indicates the difference between the arrival of S-waves and P-waves to be 4 minutes. The distance of the seismograph station from the earthquakeâs epicenter is about (1) 1,000 km (2) 1,500 km (3) 2,000 km (4) 2,500 km 17.
Andrea Bocelli. Known for his impressive operatic voice, Bocelli has had congenital glaucoma from a very young age. While he was already at greater risk for vision loss because of his glaucoma, the Italian-born tenor went totally blind at 12 years old after a suffering a brain hemorrage, the result of a soccer accident.
He is blind due to retinopathy of prematurity due to excessive oxygen in his incubator when he was born. Andrea Bocelli (1958-) â An Italian classical tenor, he was born with congenital glaucoma, but lost his vision at the age of 12 following a soccer accident in which he was hit in the head. He started playing piano when he was six, also learning the saxophone and flute.