Which of the following events could be a threat to a state’s sovereignty at the national scale, while holding a region together at the global scale? * A -natural disaster such as an earthquake or tsunami occurring within the country
B- member of the state’s minority political party being elected to lead the country
C-Admittance into a supranational organization such as the European Union
D-Decommitment to environmental resolutions established by the United Nations
E-shift from a federal system to a unitary system of governance within the state

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.

the value of the 4 in the hundreds place is 400 while the value of th e 4 in the tens place is 40

400 is way bigger than 40.

the answer is the last option or letter d)