LIFE SCIENCE

Detailed explanation-1: -The biosphere is made up of the parts of Earth where life exists-all ecosystems. The biosphere extends from the deepest root systems of trees, to the dark environments of ocean trenches, to lush rain forests, high mountaintops, and transition zones like this one, where ocean and terrestrial ecosystems meet.

Detailed explanation-2: -The sum of all the ecosystems of the world. It is both the collection of organisms living on the Earth and the space that they occupy on part of the Earth’s crust (the lithosphere), in the oceans (the hydrosphere) and in the atmosphere. The biosphere is all the planet’s ecosystems.

Detailed explanation-3: -Option B Biosphere: The biosphere, often called the ecosphere, is the totality of all ecosystems on the planet. It’s also known as the Earth’s life zone. In terms of matter, the biosphere is essentially a closed system with few inputs and outputs.

Detailed explanation-4: -The two components of the biosphere are called the abiotic and the biotic. The abiotic, or nonliving, portion of each ecosystem includes the flow of energy, nutrients, water, and gases and the concentrations of organic and inorganic substances in the environment.