Question

State the following statement is true or false:

(a) Sound above $50$ dB causes noise pollution.
(b) According to the Euro III norm, sulfur should be controlled at $150$ ppm in petrol.
(c) 'EcoSan' toilets are a sustainable system to handle human excreta.

• A. A-T, B-F, C-T
• B. A-F, B-T, C-T
• C. A-F, B-F, C-T
• D. A-T, B-T, C-T

Answer 1

Answer: (A)

A-T, B-F, C-T

• Sounds above 50 dB cause noise pollution. According to the Central Pollution Control Board, the 50 dB is the limit of noise in the silence zone during the daytime.
• According to Euro III norms, sulphur should be controlled at 100 ppm in petrol and not 150 ppm.
• EcoSan is the short-form of ecological sanitation. These toilets do not use water and are a sustainable system to handle human excreta.

Hence, the correct answer is option A.