*4.1. Curvature Parameter Effects*

Figure 2 demonstrates a deteriorating impression of velocity *F* (*η*) when *A* becomes larger. Physically, the increasing curvature of the sheet significantly increases the resistance of the flow which slows down the velocity. The same figure shows a similar decreasing pattern for temperature *θ*(*η*); as the resistance towards fluid flow is larger for the improving curvature parameter, the concentration of the fluid also improves, which slows the temperature evolution. Figure 3 shows how the nanofluid concentration *φ*(*η*) and the concentration of motile micro-organisms *χ*(*η*) behave as the radius of curvature, *A*, increases. As this parameter is increased, the CBL and MMBL are seen to decrease, which is also reflected in the reduction of concentration *φ*(*η*) and concentration of motile micro-organisms *χ*(*η*).

**Figure 2.** Influence of the curvature parameter on *F* (*η*) and *θ*(*η*).
