The correct sequence about various levels of organization of the Biosphere is:

Organism → Population → Ecosystem → Biosphere

Explanation:

1. Organism:
An organism is an individual living entity. It can be a plant, animal, or microorganism. Organisms are the basic units of life and possess certain characteristics that enable them to carry out essential functions such as reproduction, metabolism, and growth.

2. Population:
A population refers to a group of organisms of the same species living in the same area and interacting with each other. They share common characteristics and can interbreed. Population ecology focuses on studying the dynamics and interactions within populations, such as population size, density, and distribution.

3. Ecosystem:
An ecosystem is a community of organisms interacting with each other and their physical environment. It includes both biotic (living) and abiotic (non-living) components. Ecosystems can vary in size, from a small pond to a large forest. They are characterized by the flow of energy and cycling of nutrients among different organisms and their environment.

- Biotic components: These include all living organisms within the ecosystem, such as plants, animals, and microorganisms. They interact with each other through various ecological relationships like predation, competition, and mutualism.
- Abiotic components: These include non-living factors like temperature, sunlight, water, soil, and air. They provide the necessary resources and conditions for organisms to survive and thrive.

4. Biosphere:
The biosphere is the highest level of organization and encompasses all the ecosystems on Earth. It includes all living organisms, their interactions, and their physical environment. The biosphere is a dynamic system where energy and matter continuously cycle through various levels of organization. It is the sum total of all ecosystems, representing the zone where life exists.

- The biosphere extends from the deepest parts of the ocean to the highest altitudes in the atmosphere.
- It includes all types of ecosystems, such as forests, deserts, grasslands, freshwater bodies, and marine environments.
- The biosphere is influenced by global processes like climate change, nutrient cycles, and the movement of organisms across different regions.

In conclusion, the correct sequence of levels of organization of the Biosphere is Organism → Population → Ecosystem → Biosphere. Each level builds upon the previous one and contributes to the overall functioning and sustainability of the biosphere.

Organism → Population → Ecosystem → Biosphere