Why Does Earth Have an Ultraviolet-Absorbing Stratosphere,while Venus and Mars

question 41

Essay

Why does Earth have an ultraviolet-absorbing stratosphere,while Venus and Mars do not?

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Definitions:

Molecular Evidence

Information obtained from the molecular level, including DNA and proteins, that supports scientific theories or findings.

Carbon Isotopic Signatures

Differences in the ratio of carbon isotopes (carbon-12 to carbon-13) found in organic materials and carbonates, used as a tool for studying past environmental conditions and biological processes.

Diets

Pertains to the habitual nourishment or eating patterns of an individual or group, often tailored to specific health or nutritional goals.

Extinct Organisms

Species that no longer exist, having disappeared from their natural habitats and are no longer part of Earth's biodiversity.