Tossup

According to the Grímnismál (“GREEM-ness-mahl”), to “sit as judge” at one of these objects, Thor must wade through the Körmt and Örmt rivers. A tall one-eyed man thrusts his sword into one of these objects during a marriage feast for the daughter of King Völsung. Vili (“VILL-ee”), (“VAY”), and Odin create Ask and Embla from two of these objects that they are named for. Lif and Lifthrasir (10[1])survive Ragnarok by hiding in (10[1])one of these objects during the Fimbulwinter. The well of Mimir (“MEE-meer”) is (10[1])located (10[1])underneath (10[1])one of these objects (10[2])that is tended to by the three Norns. (10[1])That one of these objects houses the messenger squirrel (10[1])Ratatoskr and the dragon Nidhogg. For 10 points, in Norse mythology, what type of object is Yggdrasil ■END■

ANSWER: trees [or wood; accept world tree; accept specific types of trees like ash tree; prompt on plants; reject “ash”] (The first line refers to Yggdrasil, while the second line refers to Barnstokkr.)
<UCSD A, Mythology>
= Average correct buzz position

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