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In aerial archaeology, this word follows “crop” when describing certain man-made features, positive examples of which promote vegetation while negative examples, like buried walls, dissuade plant growth. For 10 points each:
[10h] Give this word that follows “soil” and “frost” when describing slight differences observed from the air when the mediums interact with ruins. This word is paired with “shadow” to describe features in extant ruins that are caused by elevation differences.
ANSWER: mark [accept crop marks or cropmarks; accept frost marks; accept soil marks; accept shadow marks; prompt on shadow reliefs]
[10e] Crop marks can be discovered by examining this region of the EM spectrum to observe temperature changes caused by water loss. Kites and UAVs in KAP kits use thermal imaging cameras to detect this radiation.
ANSWER: infrared [or IR; accept near-infrared or near-IR; accept far-infrared or far-IR; accept infrared thermography or IRT]
[10m] Crop marks can “deepen” into parch marks during these periods, which can also narrow tree rings. Low levels of solar radiation and the southward shift of the ITCZ may have caused one of these events linked to the Mayan collapse.
ANSWER: droughts [accept heatwaves or other answers that indicate periods of excess heat; prompt on famine by asking “what caused the famine?”]
<KT, Ancient History and Archaeology>

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Texas BHCC0101020
TAG Magnet: Taylor's VersionTAMU010010
Texas ATexas C0101020