books المناطق القطبية المستوى 6b
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# Polar regions of outer space
# Oceans - islands and polar regions
# Population in the polar regions
# Polar coordinates in the plane
# subarctic regions
# frozen polar region
# The new polar region
# Polar poles or rhetoric in wisdom
# polar cell
# International Polar Year
# polar meteorology
# List of ring polar galaxies
# polar symbols
# Polar bears are in danger of extinction
# polar compounds
# polar bond
# sub-polar vortices
# in polar coordinates
# Polar clouds and precipitation
# polar sediments
