29.Biosphere is: A. A component in the ecosystem B. Composed of the planet present in the soil C. Life in the outer space D. Composed of all living organisms present on Earth which interact with the physical environment
Option D.Biosphere also known as the ecosphere is the aggregation of all ecosystems that interact with each other along with their abiotic components and are self regualtory. So, the correct answer is 'Composed of all living organisms present on earth which interact with the physical environment'
