Multiple choice

Which of the following is/are the primary function(s) of biosphere?

  1. It provides a safe habitat within which an individual organism can complete its life cycle.

  2. It provides a stable habitat within which evolution in species can occur.

  3. It forms a self-regenerating system in which energy is provided by the Sun and the materials essentials for life are recycled from within the system.

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All three functions listed are primary roles of the biosphere: it provides habitat for organisms to complete life cycles, creates stable conditions for evolutionary processes, and maintains a self-regenerating system where solar energy drives recycling of essential materials. The biosphere is a complete, self-sustaining ecological system.

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