Air Composition and Energy Transfer in Ecosystems

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Questions and Answers

What is the approximate percentage of carbon dioxide in the Earth's atmosphere?

  • 21%
  • 1%
  • 0.04% (correct)
  • 78%

According to the second law of thermodynamics, what is the natural tendency of a closed system?

  • To progress from a more ordered state to a more disordered state (correct)
  • To maintain a constant level of order
  • To create energy from nothing
  • To become completely isolated from its surroundings

What is the most abundant gas in the Earth's atmosphere?

  • Carbon dioxide
  • Argon
  • Oxygen
  • Nitrogen (correct)

What is the primary purpose of the energy transfer in ecosystems?

<p>To sustain the living organisms (C)</p> Signup and view all the answers

According to the first law of thermodynamics, what can happen to energy in a system?

<p>Energy can only be transformed from one form to another (D)</p> Signup and view all the answers

What is the primary consequence of energy flow in a food chain?

<p>Most of the energy is lost as heat in each transfer between trophic levels. (B)</p> Signup and view all the answers

Which ecosystem is typically the most productive in terms of energy flow?

<p>Upwelling ecosystems with 3 trophic levels and a productivity of 500. (A)</p> Signup and view all the answers

What is the primary goal of the European Green Deal?

<p>To set the European Union on a path to achieve climate neutrality by 2050. (A)</p> Signup and view all the answers

What is the primary objective of ecosystem-based management?

<p>To integrate biological, social, and economic factors into a comprehensive strategy for protecting the sustainability, diversity, and productivity of natural resources. (C)</p> Signup and view all the answers

What is the primary driver of land use change in the land use-ecosystem services nexus?

<p>Changes in landscape properties or social values that influence land-use decisions. (B)</p> Signup and view all the answers

Which of the following is a consequence of poor land management?

<p>Drought, soil erosion, and desertification. (C)</p> Signup and view all the answers

What is the primary goal of the European Climate Pact?

<p>To engage citizens and stakeholders in the European Union's climate action. (C)</p> Signup and view all the answers

What is the primary concept behind the "nexus thinking" approach?

<p>Considering the interconnectedness between different systems, such as air, land, and sea. (B)</p> Signup and view all the answers

What is the primary goal of the European Green Deal's "Farm to Fork" strategy?

<p>To create a fair, healthy, and environmentally friendly food system. (B)</p> Signup and view all the answers

What is the primary concept behind the "just transition" aspect of the European Green Deal?

<p>To ensure that no one is left behind in the transition to a green economy. (A)</p> Signup and view all the answers

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