Question

What are the consequences of fossil fuel combustion mentioned in relation to nutrient cycling?

1. Fossil fuel combustion releases large quantities of nitrogen oxides into the atmosphere.
2. It leads to decreased inputs of sulfur oxides to ecosystems.
3. It enhances nutrient cycling efficiency.

• A. 1 only
• B. 3 only
• C. 2 only
• D. 2, 3

Answer 1

Answer:

A. 1 only

• Gaseous losses of nitrogen influence the chemical and radiative properties of the atmosphere, causing air pollution and enhancing the green-house effect.

• The combustion of fossil fuels has released large quantities of nitrogen and sulfur oxides to the atmosphere and increased their inputs to eco-systems.