To find area you multiply its height by the width so 2x2 = 4 (what unit it is)
Answer: Metal Detectors
Explanation: Metal detectors are inexpensive and easy to use equipment used to discover relics of the past. While it is useful in archaeology as a tool that discovers objects from the past quite easily, it is also a threat to archaeology. Some hobbyists and looters who come across archaeological finds which may be important to understanding past civilizations or a different era do not report these finds. Even worse, some looters knowingly infringe on archaeological sites and are aided by the metal detectors.
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Luxembourg is a small European country, surrounded by Belgium, France and Germany.
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Answer:
Earth's greenhouse gases trap heat in the atmosphere and warm the planet.
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I hope that helped
