Explanations:The question requires the student to evaluate the truthfulness of three statements and identify which ones are correct. Let's break down each statement:
1. "Hair of sheep and goats are used to make woollens." This statement is true. Wool is a textile fiber obtained from the fleece of sheep and goats. The hair of these animals is sheared and processed to create woolen fabrics and garments. This is a well-known fact in the textile industry and is a fundamental concept in understanding the production of wool.
2. "Mansa Musa left Mali on a Goa, or pilgrimage to Mecca." This statement is false. Mansa Musa, the ruler of the Mali Empire in the 14th century, is known for his famous pilgrimage to Mecca. However, the term "Goa" in this context is incorrect. "Goa" is a state in India and not a term used to describe a pilgrimage. The correct term for a pilgrimage in this context would be "Hajj," which is the Islamic pilgrimage to Mecca.
3. "Goa is not in India." This statement is false. Goa is indeed a state in India. It is located on the western coast of India and is known for its rich history, beautiful beaches, and cultural heritage. Goa became a part of India after the Portuguese colonial rule ended in 1961.
Given these evaluations, the only true statement is the first one. Therefore, the correct answer is Option B, which states "Only 1." This option correctly identifies the true statement about wool production and excludes the false statements about Mansa Musa's pilgrimage and the geographical location of Goa.
Understanding the historical and geographical context is crucial for correctly answering such questions. It is important to verify the accuracy of each statement and not be misled by terms that may seem plausible but are incorrect in the given context.