Which environmental concern is associated with reservoirs in large-scale dam projects?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Master the Earth and Human Activity Test. Use our resourceful quiz with varied questions, including explanations, to ensure readiness for your energy resources exam!

Multiple Choice

Which environmental concern is associated with reservoirs in large-scale dam projects?

Explanation:
When a dam floods land to create a reservoir, the submerged vegetation and soil decomposes in low-oxygen conditions. Microbes break down this organic matter and produce methane, a greenhouse gas with a much higher warming potential than CO2. Over the life of a reservoir—especially in tropical regions with abundant biomass—these methane emissions can be substantial, making climate impact a key environmental concern of large-scale dam projects. Other issues like changes in downstream biodiversity or water clarity exist, but methane release from submerged organic matter is the most notable climate-related effect.

When a dam floods land to create a reservoir, the submerged vegetation and soil decomposes in low-oxygen conditions. Microbes break down this organic matter and produce methane, a greenhouse gas with a much higher warming potential than CO2. Over the life of a reservoir—especially in tropical regions with abundant biomass—these methane emissions can be substantial, making climate impact a key environmental concern of large-scale dam projects. Other issues like changes in downstream biodiversity or water clarity exist, but methane release from submerged organic matter is the most notable climate-related effect.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy