Consider statements about ecology: 1. Primary productivity is the rate of biomass production by producers. 2. Secondary productivity is the rate of new biomass creation by consumers. 3. Decomposition rate is independent of temperature. Which are correct? MCQ with Answer and Explanation

Primary productivity is the rate at which autotrophs (producers) convert solar energy into chemical energy (biomass) through photosynthesis. Secondary productivity is the rate at which heterotrophs (consumers) assimilate food to create new organic matter (biomass). Decomposition is a biological process carried out by microbes, and its rate is highly dependent on environmental factors like temperature, moisture, and oxygen availability; warmer temperatures generally increase decomposition. Thus, statements 1 and 2 are correct.