Natural vs Enhanced Greenhouse Effect — Prelims Questions

Which of the following statements correctly distinguishes between the natural and enhanced greenhouse effect?

Which of the following greenhouse gases has seen the largest percentage increase in atmospheric concentration since the pre-industrial era due to anthropogenic activities?

Consider the following statements regarding climate feedback mechanisms: 1. The ice-albedo feedback is a positive feedback loop that amplifies warming. 2. Increased atmospheric water vapor due to warming acts as a negative feedback, dampening temperature rise. 3. Carbon fertilization effect, where increased CO2 enhances plant growth, is a positive feedback loop. Which of the statements given above is/are correct?

Which of the following international agreements is primarily characterized by Nationally Determined Contributions (NDCs) as its central mechanism for climate action?

Regarding the impact of the enhanced greenhouse effect on India, consider the following statements: 1. It is expected to increase the frequency and intensity of heatwaves across the country. 2. It may lead to more predictable and uniform monsoon rainfall patterns. 3. It contributes to the accelerated melting of Himalayan glaciers, impacting river systems. Which of the statements given above is/are correct?