Q.1 Explain how natural greenhouse effect helps in maintaining Earth’s heat budget. What are the possible implications of rising concentration of greenhouse gases (GHGs) in atmosphere on Earth’s heat budget? (15 Marks)

Mentor’s Comments- Define Earth’s Heat Budget. Explain how Greenhouse effect helps maintain Earth’s energy budget by making use of diagrams /flow charts. Discuss the potential consequences of increasing concentration of GHG’s in the atmosphere.