If pq and rs intersect to form four right angles, which statement is true?
a. pq + rs
b. pq and rs are skew
c. pq and rs are parallel
d. pq= rs

Which of the following emerging technologies uses the principle of chromosomes to identify suspects

The oldest seafloor in the atlantic ocean is located closest to the edge of the continents. explain how this age can be used to figure out when north america first began to separate from europe

What can happen to solar radiation when it enters earth’s atmosphere? check all that apply. it is absorbed by earth. it is reflected by clouds. it is reflected by glacial ice. it is condensed into visible light. it is amplified by water molecules.