1. Dive within your limitations.
2. Relax while you dive.
3. Have positive buoyancy at the surface.
increase surface friction at the leading edge?
Impress means to stamp (as in mark or outline) on a surface or body.
The elevator is the longitudinal control surface on an aircraft. It is located on the horizontal stabilizer and is used to control the pitch motion of the aircraft, which refers to the up and down movement of the nose.
Cathodic protection is used to control corrosion of metal on the surface of structures in various environments. In some cases Cathodic protection can prevent stress corrosion and fracturing.
A rough Surface
Answer is A riged surface prevnts slipping on a slope.
Shape is the quality of a distinct object or body in having an external surface or outline of specific form or figure.
A bumpy, rough surface so you don't slip.
Aerodynamic balancing is normally done to reduce the stick control force to the pilot while Mass balancing is done to prevent flutter ( a vibration that can cause stress to the structure of the control surface and may cause permanent damage )
The control surface that controls pitch is the elevator. It is located on the horizontal stabilizer of an aircraft and is used to control the aircraft's pitch attitude by adjusting the angle of the stabilizer.
Aerodynamic balancing on a control surface helps to ensure that the forces acting on the surface are evenly distributed, improving control effectiveness and reducing the chances of flutter or unwanted vibrations. It also helps to maintain stability and control of the aircraft during flight by minimizing the required control input from the pilot.
The control surface on a Poriferan is the surface that lines its internal canals and chambers. This surface is covered in specialized cells called choanocytes, which have flagella that create water currents to draw in food particles and oxygen for the sponge. The control surface plays a crucial role in nutrient exchange and waste removal in Poriferans.