Solved Paper Himachal Pradesh Administrative Services (HPAS/HAS) Exam 2019 [Part-1]
Series – D 1. Which of the following concentrations of Ozone in ambient air is considered good? Upto 0.06 ppm Upto 0.18 ppm Upto 0.15 ppm Upto 0.20 ppm 2. The intensity of a normal conversation in decibel is between: 30-35 60-80 35-60 70-80 3. The impacts caused by the construction of dams and reservoirs… Read More »