Which atmospheric gas is being described a noble gas makes up approximately 1% of the atmosphere

Argon is the third noble gas, in period 8, and it makes up about 1% of the Earth's atmosphere.

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science-ocean floors and habitats study guide by volleyballqueen3817 a major advance in ocean-floor mapping. list four sections of the ocean floor. algae that use sunlight to produce their own food through photosynthesis. all of the feeding relationships that exist in a habitat. drying out, predators, find food.

protistas excret ethanol used in the manufacture of vinegar