Answer: About 1/3 of the co2 produced by humans during the past century has been absorbed by the ocean.
The word “terrorism” was first introduced after the French Revolution
Answer: Heyo :)
(1) Maybe g oogle that one, im not sure
(2) march 21: celestial equator; june 21st ;Tropic of Cancer september 23rd; celestial equator; December 23rd: the Tropic of Capricorn
(3) <u>in a leap year, we add an extra day in February </u><u><em>(making it 29 days instead of 28)</em></u><u>. What goes around: The reason we have February 29 every four years is because of two different time cycles involved with the rotation of the Earth.</u>
Explanation:
<em>insp: nightmhares on brain.ly</em>
Migration is when the birds go from south to north, north to east, east to north, and south to east.
The reasons for migration is that when it is cold the births fly north to south to find somewhere warmer (Like Florida). Birds can't fly in the cold so they fly to the warmer area.
Mountains are created when two plates collide. When the plates converge or slide underneath each other the heat causes melting of the crust and volcanoes appear. When they cool off they become islands.
