Earth's magnetosphere .
a. shields us from the solar wind.
b. has a radius approximately 5 times the radius of Earth.
c. is essential to the formation of auroras.
d. extends far into space beyond Earth's atmosphere.

the answer is A

Explanation: The magnetosphere shields our home planet from solar and cosmic particle radiation, as well as erosion of the atmosphere by the solar wind - the constant flow of charged particles streaming off the sun. ... It is generated by the convective motion of charged, molten iron, far below the surface in Earth's outer core.

the one feature that all mediterranean countries have in common is that they border the mediterranean sea.

explanation: