Many Countries Have a Lower Rate of Pregnancies Resulting in Spina

question 148

Multiple Choice

Many countries have a lower rate of pregnancies resulting in spina bifida because ____.

• A) iodine is added to table salt
• B) fluoride is added to drinking water
• C) folic acid is added to grain products
• D) school immunisations are required

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Definitions:

Island Chains

A series of islands closely spaced in a linear or arc formation, often formed by volcanic activity.

Volcanic Origin

Refers to landscapes, geological features, or materials that have formed as a result of volcanic activity, including eruptions, lava flows, and ash deposits.

Seafloor

The bottom of the ocean, covering a vast area and including features like plains, mountains, and trenches.

Continental Shelves

The underwater landmasses that extend around the continents, typically extending from the shore to a drop-off point known as the shelf break.