
The diagram represents a common form of unsupervised learning known as clustering. Clustering is a technique where similar data points are grouped together based on their features, without predefined labels. This technique is used in scenarios where the algorithm needs to find patterns or groupings within data that are not previously labeled. For example,customer segmentation based on purchasing behavior.

There is a circular park of diameter 65 m as shown in the following figure, where AB is a diameter. An entry gate is to be constructed at a point P on the boundary of the park such that distance of P from A is 35 m more than the distance of P from B. Find distance of point P from A and B respectively.
You have three aqueous solutions A, B, and C as given below:
A - Potassium nitrate
B - Ammonium chloride
C - Sodium carbonate
The ascending order of the pH of these solutions is: