सुपोषण (यूट्रोफीकेशन) के संबंध में निम्नलिखित में से कौन-सा/से कथन सही है/हैं? With reference to Eutrophication, which of the following statement(s) is/are correct?
- यह जल में घुलित ऑक्सीजन को कम करता है। / It decreases dissolved oxygen of water.
- यह जल निकाय के पोषक तत्व संवर्धन की घटना है। / It is a phenomenon of nutrient enrichment of a water body.
Verified Answer
A. केवल 1 / 1 only
B. केवल 2 / 2 only
C. 1 तथा 2 दोनों / Both 1 and 2
D. न तो 1 न ही 2 / Neither 1 nor 2
Explanation:
Eutrophication is the process where a body of water becomes overly enriched with nutrients (Statement 2). This leads to excessive growth of algae and other aquatic plants. When these plants die and decompose, the process consumes large amounts of dissolved oxygen in the water, leading to hypoxia or anoxia (Statement 1), which can harm other aquatic life. Both statements are correct.