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1. Which explanation accounts for the sightings on land?
otter
plesiosaur
tree trunks
2. When did Plesiosaurs become extinct?
70 million years ago
10,000 years ago
3. How old is Loch Ness?
70 million years old
10,000 years old
4. What causes mirages on Loch Ness?
a massive chunk of ice
weather conditions
boat wakes