Using the Data in This Table, Calculate the Number of Half-Lives

question 7

Multiple Choice

Using the data in this table, calculate the number of half-lives that have passed for the granite unit G on this table) ?

• A) 1
• B) 2
• C) 3
• D) 4
• E) 5

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Definitions:

Biomes

Large community of plants and animals that occupies a distinct region defined by its climate, flora, and fauna.

Coral Reefs

Diverse underwater ecosystems held together by calcium carbonate structures secreted by corals, serving as habitats for a vast array of marine life.

Calcium Carbonate

A chemical compound with the formula CaCO3, found in rocks as the minerals calcite and aragonite and is the main component of pearls and the shells of marine organisms, snails, and eggs.

Coral Polyps

Tiny, soft-bodied organisms that form the structure of coral reefs through their skeletal deposits.