What would have the greatest long-term impact on reducing the amount of carbon dioxide in the air 1. Decreasing the number of livestock on a farm
2.planting trees around a farm
4. Cutting down trees around a farm
5. Increasing the number of live stock on farm

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the