But his health problems, which involve a progressive decline of his neurological system, made it difficult for him to participate in hearings or directly answer charges.

Various pressures in the latter part of the 20th century led to the progressive decline of wilderness resulting in the disturbance of viable tiger habitats.

However, sector problems have led to a progressive decline of the shipyard.

The last decades of the 20th century saw a progressive decline of private pilot flights and a decreasing number of small aircraft.

Each yuga represents a progressive decline in piety, morality, strength, stature, longevity and happiness.