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Google\'s astoundingly sober homepage is only the visible tip of a huge iceberg, with numerous secrets hidden underneath. Commands, search tricks and touches of humour are sprinkled generously throughout the different tools made by the firm from Mountain View. So you think you know everything about Google? Here\'s your chance to prove it!
Question 1/15 -

What is the name of the filter that enables you to remove “inappropriate content” from search results?