Match List-I (Pollutants) with List-II (Sources) and select the correct answer:
| List-I | List-II |
| a. Petroleum and industrial hydrocarbons | 1. Vehicles |
| b. Airborne lead | 2. Offshore wells, oil tankers, industrial wastes |
| c. Mercury | 3. Plastic industries |
| d. Polychlorinated biphenols | 4. Industrial operations |
A. a-1, b-3, c-4, d-2
B. a-3, b-2, c-1, d-4
C. a-2, b-1, c-4, d-3
D. a-2, b-3, c-4, d-1
Answer: Option C
Related Questions on Plant Anatomy and Physiology
A. Cinnamomum - Amoora association
B. Bischofia - Dillenia association
C. Shorea - Lagerstroemia association
D. Mesua - Michelia association
Which of the following react with haemoglobin, forming methemoglobin which will not take up oxygen?
A. Nitrates
B. Nitrites
C. Carbides
D. Oxides
Internally, hydathode shows a group of loosely arranged parenchymatous cells called as
A. Epiderm
B. Epithelium
C. Ampithecium
D. Epithem

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