60 x 24=your answer
Earth Day is not a federal holiday so states are not required to observe this day. Many states have certain things they do during the day. Most other countries do not observe Earth Day.
there are 4 tides a day, 2 high, 2 low.
24
There are many different logos for Earth Day. You can do a Google image search for them.
Millioons each day
2101 minutes is approximately a day and a half.
240 mintues
150
3 hours and 45 minutes
(3 weeks) x (7 day/week) x (1,440 minute/day) = 90,720 minutes
43829.0639
60 minutes
Not quite sure what "mintues" are. If that is meant to be minutes, then the answer, surely, is 360 minutes!
9 hours and 55 mintues
24,000
12960
90