By analyzing the speed at which seismic waves travel, scientists gain clues about
a) the density of earth's layers
b) the amount of magma in earth's layers
c) the temperature of earth's layers
d) the elements found in earth's layers

Which statement is a proper biconditional statement for the conditional statement: if a line intersects a line segment at its midpoint, then it is a segment bisector. if a line is a segment bisector, then it intersects the line segment at its midpoint. if a line does not intersect a line segment at its midpoint, then it is not a segment bisector. a line intersects a line segment at its midpoint if, and only if, it is a segment bisector. if a line is not a segment bisector, then it does not intersect the line segment at its midpoint.

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Unlike other andean nations, chile has a relatively small population of mestizos people of european descent indians people of asian descent