Increases from 12 hours at the equator to 24 hours at the Artic Circle.
That will depend on where exactly you are in the northern hemisphere. Close to the equator it will be about 12 hours, while at the North Pole it will be 24 hours. So it is anything from 12 to 24 hours, depending on your specific location.
It is the summer solstice, which normally occurs on 21st June. However in 2008 the exact solstice will occur at 23:59 hours on 20th June. In fact this is the first time since 1975 that it hasn't occurred on 21st June (it was 22nd June then)In the southern hemisphere December 21st, in the northern June 21st
That would depend on where you live, and which part of autumn you mean. The definition of "autumn" is the period between the autumnal equinox and the winter solstice, so the number of hours of daylight would be "less than 12, and decreasing". On September 22, the number of hours of hours of daylight would be only a minute or so less than 12 hours, while on December 19 the length of the day will be somewhere between 11.9 hours and zero, depending on your latitude.
yes
Actually, the days start growing shorter from the summer solstice on, right through the summer and fall. That's because the Earth's axis of rotation is tilted about 23.5 degrees as compared to the plane of the Earth's orbit around the Sun.
12 hours
June, same as the rest of the northern hemisphere
winter solstice
yes
That will depend on where exactly you are in the northern hemisphere. Close to the equator it will be about 12 hours, while at the North Pole it will be 24 hours. So it is anything from 12 to 24 hours, depending on your specific location.
March 20 and September 23 are the two equinox days when there are 12 hours of daylight and 12 hours of darkness at any place on the Earth.
During the summer, the sun is striking the Northern Hemisphere straight on, therefore providing strong sunlight and longer daylight hours. The opposite is true during the winter; the Northern Hemisphere is turned away from the sun during this time, hence receiving weak sunlight and shorter daylight hours.
The Arctic region, anywhere north of the Arctic Circle (approx. latitude 66° 34' N), has the greatest number of daylight hours when it is summer in the Northern Hemisphere. The Antarctic (including almost all of Antarctica), south of the Antarctic Circle (approx. latitude 66° 34' S), has the greatest number of daylight hours when it is summer in the Southern Hemisphere.
Canada aye
They have the same number of letters
The Sun reaches an EQUINOX when it is directly above Earth's equator and the number of daylight hours equals the number of nighttime hours all over the world. At this time, neither the northern or the southern hemisphere is tilted toward the Sun.
Probably because the southern hemisphere has more water than the northern hemisphere. It takes more heat to raise a given mass of water a certain number of degrees than to raise the same mass of any other substance the same number of degrees.