________ Is a Frothy Volcanic Glass with So Much Void

question 55

Multiple Choice

________ is a frothy volcanic glass with so much void space that it can actually float.

• A) Obsidian
• B) Sponge rock
• C) Pumice
• D) Lava
• E) A floater

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Definitions:

Blood PH

Blood pH is a measure of the acidity or alkalinity of blood, with a normal range for human blood typically being between 7.35 and 7.45, indicating a slightly alkaline condition.

Carbon Dioxide

A gas without color or smell, created from burning carbon and organic compounds, and emitted during breathing, which is taken in by plants during the process of photosynthesis.

Arsenic

Referred to as a semimetallic chemical element, recognized for its role in historical poisoning cases, it has applications in electronics and wood preservation.

Lethal Dosage

The amount of a substance required to cause death in a living organism, often abbreviated as LD.