How do you get rid of biting midges? To get rid of biting midges, don't water the plants in your house and garden too often. The soil needs to dry in between waterings, as the larvae of biting midges live in damp soil. Once the soil dries out completely, the larvae die.
On physical examination, check for the quadriceps angle, or Q-angle, which is the angle created between a line drawn from the center of the anterior superior iliac spine on the pelvis to the center of the patella and a second line from the center of the patella to the middle of the tibial tubercle.
We use the outer scale to measure the angle PQR, as the arm PQ passes through the zero of the outer scale. Following the outer scale around the protractor, we find that the other arm, QR, passes through the outer scale at 120. So, the size of angle PQR is 120 degrees.