This is a graph of carbon dioxide in earths atmosphere. Measured since 1958. There are two patterns in this data what are they?

the answer is crop rotation

niger

explanation:

bc its the main river

answer; gravity pulls glaciers down hill and as glaciers flow it pick up rocks and soil;

a mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. this uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.a geomagnetic reversal is a change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged.