On... Earth Day.
Arbor Day and Earth Day celebrate the earth and bring people to plant a tree.
no
the purpose for earth day is to help save the earth
Wisconsin. See reference below. ~ TCK, AZNews results for What is the history of "Earth Day"?Telegraph.co.ukEarth Day 2010: A Brief History of Earth Day and a Look Back at 40 ...‎ -2 hours agoEarth Day is intended to inspire awareness and appreciation for the Earth's environment. It was founded by US Senator Gaylord Nelson of Wisconsin as an ... Gather.com - 896 related articles »The DIY Genius of the Original Earth Day‎ - Wired News - 398 related articles »
Day and night and the seasons
Each revolution of the Earth results in one complete day.
The day/night cycle results from the Earth rotating.
The rotation of the Earth results in its day and night cycles. The exception to this is in the polar regions that have day and night for 6-months each due the Earth's tilt.
the different seasons and the length of day and night varies from place to place
the different seasons and the length of day and night varies from place to place
Mainly, this is caused by Earth's rotation around its axis. (Earth's revolution around the Sun results in one less day per year, than the number of rotations.)
The earth's rotation results in daytime and nighttime.
It will be able to record information to be more reliable and will be able to record results accurately at that time of day.
NoEarth Day is generally a 24 hour period of time, relative to the time zone you live in. It seems, however, that some areas of the world celebrate an Earth Week.~ TCK, AZNews results for What is the history of "Earth Day"?Telegraph.co.ukEarth Day 2010: A Brief History of Earth Day and a Look Back at 40 ...‎ -2 hours agoEarth Day is intended to inspire awareness and appreciation for the Earth's environment. It was founded by US Senator Gaylord Nelson of Wisconsin as an ... Gather.com - 896 related articles »The DIY Genius of the Original Earth Day‎ - Wired News - 398 related articles »
On... Earth Day.
A day. seasonal? 3 months? one rotation is 24hrs. one revolution is 1 year.