The severe AQI (>450) observed in Delhi in November 2024 was mainly due to:
ACO and Lead
BPM2.5 and SO₂
CNOx and VOCs
DMercury and Arsenic
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Related Questions:
Which of the following statements about dissolved oxygen in lake ecosystems is correct?
- Dissolved oxygen is generally higher in stagnant lake waters compared to flowing lotic systems.
- The oxygen content in lakes typically decreases with depth.
- Only the surface layer of a lake interacts with atmospheric oxygen.
- Decomposition of organic matter does not affect dissolved oxygen levels.
Which of the following is an example of a marine ecosystem?
Consider the following statements regarding producers in different ecosystems.
- In terrestrial ecosystems, rooted plants are the main producers.
- Phytoplankton are floating plants that are dominant producers in aquatic ecosystems.
- Macrophytes are shallow water rooted plants primarily found as producers in terrestrial environments.
Which of the following is not an abiotic factor in an ecosystem?
What are the consequences of fossil fuel combustion mentioned in relation to nutrient cycling?
- Fossil fuel combustion releases large quantities of nitrogen oxides into the atmosphere.
- It leads to decreased inputs of sulfur oxides to ecosystems.
- It enhances nutrient cycling efficiency.