Earth's craters are enduring testaments to direct asteroid hits. And though millionsâin some cases billionsâof years of erosion have made it difficult to determine the exact size of the meteorites, there is a general scientific consensus around the world's largest craters, which mark the largest asteroid impacts. Here are the ten biggest known: 1. Vredefort Crater.
Quick Answer. Tiger sharks have a row of 24 teeth in their upper jaw and a matching set of 24 teeth in the lower jaw, totaling 48 teeth. Tiger sharks have a square jaw structure, and each of their teeth are built with cutting and sawing mechanisms. Continue Reading.
Most adults will get 32 permanent teeth in all : 8 incisors, 4 canines, 8 premolars (biscuspids) and 12 molars. The last set of 4, the tertiary molars, are called wisdom teethâ¦, and they are often removed because of various problems. Some individuals will have fewer teeth, but they are usually missing molars.