Why Do Scientists Believe There Was Once Liquid Water on Mars

question 12

Multiple Choice

Why do scientists believe there was once liquid water on Mars?

• A) Depositional landforms are seen on Mars,but not erosional landforms.
• B) Landforms such as river channels and sandbars are seen on Mars.
• C) Large depressions are seen on Mars that were once large lakes.
• D) Evidence of marine life has been found in the rocks on Mars.

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Definitions:

Carnivores

Organisms that primarily consume meat from other animals as their source of nourishment.

Trophic Category

A classification of organisms based on their feeding positions and energy sources within an ecosystem.

Decomposer

Heterotroph that feeds on organic remains by breaking them down into smaller, absorbable subunits.

Mushrooms

Fungi that produce a distinctive fruiting body, often edible and used in cooking, but some species are poisonous or have medicinal properties.