Answer:
number 3 is carbon dioxide.
The nitrogen cycle could not exist without bacteria. Bacteria that lived inside the ground, catch the ntirogen that has been fixed and convert it into nitrate. This nitrate than used as a nutrients during photosynthesis from which the plants produce another fixed nitrogen and completed the cycle.
Because the world rotates around and God the creator changed up the earth that's the biblical answer but a scientific answer would be due to himans
Answer: Well for starters they have Resources that animals need and habitats where they live also certain animals belong in certain climates like if it was a cold region then snow leopards polar bears seals penguins etc. they can thrive in those regions while like bears Lions gazelles thrive and warmer and dryer regions
Explanation:
