An Astrolabe Was a Small Triangular Sail That Enabled Sailors

question 6

True/False

An astrolabe was a small triangular sail that enabled sailors to sail against the wind.

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Definitions:

Chemotherapy Treatments

Medical treatments involving the use of chemical substances, especially the use of drugs, to treat cancer by killing or stopping the growth of cancerous cells.

Oral Cavity

The mouth, an opening in the body used for intake of food and liquid and the start of the digestive tract, also playing a significant role in verbal communication.

Scaling

A dental procedure that removes plaque and tartar from the teeth to prevent periodontal disease.

Dandruff

A common scalp condition marked by flaking and sometimes itching.