59. The process of heating the solid wastes in an oxygen free atmosphere splitting the
organic substances through thermal cracking and condensation is
(A) Incineration (3) Gasification
(C) Spreader Stoking (0) Pyrolysis

60. According to IS 10500:2012, the acceptable limit of turbidity is
(A) 1 NTU (B) SNTU
(© 10NTU (D) 2NTU

61. The most common disposal method for nuclear waste is:
(^) Microbial uptake (8) Pyrolysis
(C) Incineration (D) Burial in concrete containers

62. The unit of frequency of sound is:

(A) Decibel (dB) (B) Hertz (Hz)

(ಲ) m/s (D) Lambda
63. 191-1181 disease is caused by the heavy metal:

(A) Cadmium (B) Mercury

(C) Chromium (D) Lead

64. When the rate of deoxygenation is more than the rate of reaeration,
(^) DO increases (B) DO deficit decreases
(C) DO deficit increases (D) Ultimate BOD increases

65. Which of the following sets out the criteria for an environmental management system and
can be certified to ?

(A) ISO 18001 (B) 15014001

66.

(0)

150 9000

(೧)

SO 9001

The Kyoto Protocol is an international treaty that commits state parties to:

(A) reduce greenhouse gas emissions (B)
(೮) 160006 acid rain (D)

reduce ozone depleting substances
reduce photochemical smog

67. The Montreal Protocol is an international treaty designed to:
(A) reduce greenhouse effect (8) protect ozone layer
(೮) 160006 acid rain (D) reduce photochemical smog

68. What is the unit for Carbon footprint ?
(A) tonnes of CO, equivalent (B) _ hectares of land

(0) mg/litre of air (D) 110 unit

073/202 = ` 10 A