Statements (21)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
physical phenomenon
|
| gptkbp:affects |
human circadian rhythms
|
| gptkbp:associatedWith |
gptkb:depression
|
| gptkbp:can_last_up_to |
6 months at the poles
|
| gptkbp:cause |
Earth's axial tilt
|
| gptkbp:defines |
period of darkness lasting more than 24 hours, usually within the polar circles
|
| gptkbp:duration_varies_by |
latitude
|
| gptkbp:first_sunlight_after_polar_night_called |
polar day
|
| https://www.w3.org/2000/01/rdf-schema#label |
Polar night
|
| gptkbp:includes |
gptkb:astronomical_polar_night
gptkb:civil_polar_night gptkb:nautical_polar_night |
| gptkbp:longest_at |
the poles
|
| gptkbp:occurredIn |
polar regions
|
| gptkbp:occurs_north_of |
gptkb:Arctic_Circle
|
| gptkbp:occurs_south_of |
gptkb:Antarctic_Circle
|
| gptkbp:opposedBy |
midnight sun
|
| gptkbp:shortest_at |
the polar circles
|
| gptkbp:bfsParent |
gptkb:Arctic_Canada
gptkb:Circumpolar_North |
| gptkbp:bfsLayer |
6
|