Assertion (A) states that tropical rain forests are disappearing fast from developing countries like India. This is true; deforestation rates in tropical regions, including parts of India, are high due to various developmental activities. Reason (R) states that no value is attached to these forests because they are poor in biodiversity. This is false. Tropical rain forests are globally recognized as hotspots of biodiversity, housing a vast number of plant and animal species. Their destruction is due to economic and developmental pressures, often despite their ecological value, not because they lack value or biodiversity.