<span>February 29 is a date that usually occurs every four years, and is called a leap day. This day is added to the calender in leap years as a measure, because the earth doesnt orbit around the sun in exactly 365 days (1 year). The gregorian calendar is a modification of the julian calender first used by the romans. </span>
Hi! If slave trade was banned, different races would have different relations among themselves and racism could have possibly been less common. The economy also would not have as much cotton produced because most workers used slaves. I hope this helps!
Answer:
Greenhouse effect
Explanation:
Greenhouse effect is the trapping of the sun's warmth in a planet's lower atmosphere, due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface.
What do you mean please explain
Answer:
Explanation:
visit these websites it will help u:
https://www.space.com/56-our-solar-system-facts-formation-and-discovery.html
https://www.nasa.gov/audience/forstudents/5-8/features/nasa-knows/what-is-orbit-58.html
