Which set of symptoms best describes the long-term effects of methamphetamines? severe dental problems, anxiety, confusion, and sleep disorders
brain damage due to oxygen deprivation and nerve damage
impaired brain development and impaired memory and learning
death due to heart failure due to increasingly larger doses needed to get the same “high”

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.

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.

the awnser is a

it is not b or c