Amniocentesis has the following advantage and disadvantage:
- Advantage: It helps in the early detection of genetic disorders in the fetus, enabling timely medical interventions.
- Disadvantage: Amniocentesis can be misused for prenatal sex determination, which may lead to unethical practices like female feticide.
Graphically represent the relationship between species richness and area on a log-log scale for bats and fishes.

A ladder of fixed length \( h \) is to be placed along the wall such that it is free to move along the height of the wall.
Based upon the above information, answer the following questions:
(iii) (b) If the foot of the ladder, whose length is 5 m, is being pulled towards the wall such that the rate of decrease of distance \( y \) is \( 2 \, \text{m/s} \), then at what rate is the height on the wall \( x \) increasing when the foot of the ladder is 3 m away from the wall?