UPSC Civil Services Prelims 2021
Question 52 of 52Environment and Ecology
Why is there a concern about copper smelting plants? 1. They may release lethal quantities of carbon monoxide into the environment. 2. The copper slag can cause the leaching of some heavy metals into the environment. 3. They may release sulphur dioxide as a pollutant.
A1 and 2 only
B2 and 3 only
C1 and 3 only
D1, 2 and 3
Correct Answer
The correct answer is hidden
Explanation
45 words hidden ... harm. Copper slag, if not managed properly, can introduce toxic metals into soil and water. The first statement is not ... 44 words hidden