Question

Which of the following are a part of the biosphere?

The biosphere includes all of Earth's species and the physical space they occupy, which includes water, soil, and the CO₂ in the atmosphere.
a) Only Earth's species
b) Earth's species and soil
c) Earth's species, water, and CO₂
d) Earth's species, water, soil, and CO₂

Answer 1

d) Earth's species, water, soil, and CO₂

The biosphere includes all of Earth's species, water, soil, and CO₂ in the atmosphere, making option d) the correct answer.

Step-by-step explanation:

The biosphere encompasses the broad expanse of Earth where life is possible, consisting of various ecosystems, including forests, oceans, and grasslands. These ecosystems consist of both biotic components, such as plants, animals, bacteria, and fungi, and abiotic components like water, air, and soil. Answering the student's question, the biosphere indeed includes all of Earth's species, and the physical spaces they occupy, which encompasses soil, water, and the CO₂ in the atmosphere. Therefore, the correct answer to which of the following are part of the biosphere is d) Earth's species, water, soil, and CO₂.