What causes oxygen and carbon dioxide to pass through the capillaries and air sacs in the lungs? choice 1: heat choice 2: diffusion choice 3: cool air

Two rigid transformations are used to map abc to qrs. the first is a translation of vertex b to vertex r. what is the second transformation? a reflection across the line containing ab a rotation about point b a reflection across the line containing cb a rotation about point c

How to use order of operation in 20 divide by 4 multiply 5 = 1

In angle pqr find the measure of