It is widely known that the right and left hemispheres of the brain perform different tasks. Lesions to the left hemisphere typically bring impairments in language production and comprehension, while lesions to the right hemisphere give rise to deficits in the visual-spatial perception, such as the inability to recognize familiar faces.
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Noctilucent clouds (NLCs) consist of water ice particles in the mesosphere, at altitudes of 80-85 kilometers [50-53 miles] and latitudes poleward of about 55 degrees, during summer in either hemisphere.
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