Before Photosynthesis Evolved, ____ Was a Very Small Component of Earth's

question 40

Multiple Choice

Before photosynthesis evolved, ____ was a very small component of Earth's early atmosphere.

• A)carbon dioxide
• B)nitrogen
• C)water
• D)oxygen
• E)argon

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Definitions:

Tube Worms

Marine invertebrates living in tube-like structures, part of the phylum Annelida or sometimes other groups.

Mean Annual Temperature

The average temperature of a specific location over the course of a year, taking into account all seasonal variations.

Precipitation Ranges

The variability in the amount of precipitation (rain, snow, hail, etc.) an area receives over a period of time.

Tropical Rainforest

A hot, moist biome found near Earth's equator, characterized by high biodiversity and dense vegetation.