Consider the diagram. please hurry!! Line l is a perpendicular bisector of line segment R T. It intersects line segment R T at point X. Line l also contains point S.
Which line segment has the same measure as ST?

RX
TX
SR
XS

a and b

answer; i believe the answer is hydraulic action;

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.