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Explanation The liquid in a graduated cylinder curves up at the edge where the liquid meets the wall of the cylinder. This curve in the liquid is called the meniscus and is used to determine the volume of liquid in a graduated cylinder by observing the measurement tick closest to the bottom of the meniscus.:
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The poem is about the rain. The poet recalls sweet memories from his childhood. When the dark cloud covers the sky, and it starts raining, the poet lies down on his bed and listens to the pattern of the soft rain that falls on the roof of his home. The sound of the rain droplet brings back sweet memories of his past.
Beowulf recognizes he is losing when the dragon melts his shield; that said, he continues the fight anyway.