1. Among total dissolved matter in marine water, chlorine accounts for

(A) 30%
(B) 55%
(C) 12%
(D) 6%



2. Pulmonary oedema is caused by

(A) Carbon monoxide
(B) Sulphur dioxide
(C) Nitrous oxide
(D) Methane


3. Which one of the following makes blood toxic, after combining with haemoglobin?

(A) CO2
(B) CO
(C) SO2
(D) CH4



4. Respiratory electron transport chain can be inhibited by

(A) ADP
(B) Phosphate
(C) H2S
(D) CO2


5. Assertion (A): Oil slick in the ocean causes mass scale death of fish.
Reason (R): The gills of fish get clogged.

Point out the correct one of the following:

(A) Both (A) and (R) are true with (R) being the correct explanation.
(B) Both (A) and (R) are true but (R) is not the correct explanation.
(C) (A) is true, but (R) is wrong.
(D) Both (A) and (R) are wrong.




6. Match the rules mentioned in Column – I with year of enforcement mentioned in Column – II.

Column – I                                                                                     Column – II
a. Hazardous Wastes (Management and Handling) Rules               1. 2000
b. Biomedical Solid Wastes (Management and Handling) Rules.     2. 1978
c. Municipal Solid Wastes (Management and Handling) Rules        3. 1989
d. The Water (Prevention and Control of Pollution) Cess Rules       4. 1998

Choose the correct code:

      a        b         c        d
(A) 3        4         1        2
(B) 4        1         2        3
(C) 2        4         3        1
(D) 1        3         4        2


7. Average composition of biodegradable waste in Municipal Solid Waste (MSW) of India is

(A) 30 – 35%
(B) 40 – 45%
(C) 55 – 65%
(D) 60 – 70%



8. The treatment method recommended for the human anatomical waste generated from hospitals is

(A) Chemical disinfection
(B) Autoclaving
(C) Incineration
(D) All the above


9. Match the waste class mentioned in Column – I with Color Code of the Collection Container mentioned in Column – II.

        Column – I                              Column – II
a. Human Anatomical Waste           1. Blue
b. Waste Scrap                                2. Green
c. Discarded glass ware                  3. Red
d. Disposable plastics                      4. White

Choose the correct code:

      a       b       c       d
(A) 2       3       1       4
(B) 4       2       3       1
(C) 1       2       3       4
(D) 3       1       4       2


10. Which of the following is true when frequency of occurrence of risk is remote but possible?

(A) Risk is acceptable.
(B) Risk reduction measures should be implemented.
(C) Risk is unacceptable.
(D) Both (A) and (B) are true.


More MCQs on Environmental Issues