A Crustal Rock Dated to 1

question 1

Multiple Choice

A crustal rock dated to 1.9 Ga is how old?

• A)1,900 years
• B)190,000 years
• C)1,900,000 years
• D)1,900,000,000 years

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Definitions:

Liquid Iron Preparations

Oral formulations used to treat or prevent iron deficiency and anemia, providing iron in a liquid form for easier absorption.

Hemoglobin

A protein in red blood cells that carries oxygen from the lungs to the rest of the body and returns carbon dioxide from the body to the lungs to be exhaled.

Iron-Deficiency Anemia

A common type of anemia resulting from inadequate levels of iron in the body, leading to a reduction in the number of red blood cells or hemoglobin.

Hematopoietic System

The body's system responsible for the production of blood cells, including red blood cells, white blood cells, and platelets, primarily occurring in the bone marrow.