Light travels at the speed of
a) over 5 billion km.
b) 5 million km.
c) over 1 billion km.
d) 15 million km

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.

What is the approximate chemical composition of the solar nebula?

The action of eventually a low island to form. a. wind b. waves c. volcanoes d. tectonic plates