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spec: Would it not be great if search within your company was as easy as search on Google.co.uk ? To ensure that the nation 's capital is spared another chapter of carnage , it is imperative vigilance be maintained , and that efforts to safeguard Washington do not inadvertently play into the hands of terrorists . However , insurance for such risks is only rarely available as insurers see such loss as an inevitable event on eroding coastlines . " Since the glaciers left 10,000 years ago , about a million meteorites have fallen on Canada , but only 66 have been found to date , " says Hildebrand . They disappear from the fossil record most recently around 30,000 years ago , about the time that early modern humans , Homo sapiens , started to spread across the continent . Have students glue their maps onto larger pieces of construction paper so that there 's a border of several inches around the map . Then , at the end of the Cretaceous , about 64 million years ago , about 70 per cent of all living things , including the dinosaurs and their relatives , were wiped out .