What does the author imply by saying “Not a single pebble was found that mighthave indicated that the pebbles came from the nearby continent”?A. The most obvious explanation for the origin of the pebbles was not supported bythe evidence.B. The geologists did not find as many pebbles as they expected.C. The geologists were looking for a particular kind of pebble.D. The different pebbles could not have come from only one source.

Why are there no samples of rocks from the early Precambrian era?A.All rocks were molten in that time period.B.They are buried under sediment.C.They have undergone metamorphosis.D.All of them formed under volcanoes

To discriminate artefacts from geofacts at a famous brasilian site, archaeologist Fabio Parenti used (one answer): the fact that there were always less than 3 flakes removed from only one side of the pebbles as a cultural norm the Levallois shape of the flaked pebbles nothing as he concluded it was impossible to differentiate geofacts from artefacts Ethnographical comparisons with current stone tools the presence of retouch and microretouch on several sides of the flaked pebbles

Which was considered as a mild stone in the history of science?

Read the introduction [paragraphs 1-8].Which sentence from the introduction supports the conclusion that people are often mistaken about fossils?AThat’s when they discovered a fragment of an ancient sea beast.BThey spotted a 4-inch-long, oval-shaped fossil.CThey concluded that the fossil was from an ichthyosaur.D“[Most] of the time, it turns out to be an odd-shaped rock.”

21)In 2008 a complete set of ancient pessoi (glass game pieces) was uncovered from beneath a paving stone in modern-day Israel. Due to their small size, pessoi were easily misplaced, making a whole set a rare find. This has led some experts to suggest that the set may have been buried intentionally; however, without clear evidence, archaeologists are left to ______ what happened. Which choice completes the text with the most logical and precise word or phrase?WICPRAEN-021dismisscatalogspeculate aboutexpand on