Explanation: To understand the correct answer, we need to analyze each statement individually and then determine which combination of statements is accurate.
1. **Panaji is the capital of Goa**: This statement is true. Panaji, also spelled as Panjim, is the capital city of the Indian state of Goa. It is located on the banks of the Mandovi River and is known for its colonial architecture and historical significance.
2. **Goa lies between Nepal and Sikkim**: This statement is false. Goa is located in the western part of India, specifically in the Konkan region. Nepal and Sikkim, on the other hand, are located in the northeastern part of India. Goa is not geographically positioned between these two states. Instead, it is bordered by the states of Maharashtra to the north and Karnataka to the east and south, with the Arabian Sea to the west.
3. **Marmagao is the premier iron ore exporting port of Goa**: This statement is true. Marmagao Port, also known as Mormugao Port, is a major port in Goa. It is strategically located on the west coast of India and is one of the largest ports in the country. Marmagao Port is particularly significant for the export of iron ore, which is one of Goa's major natural resources. The port handles a substantial amount of iron ore exports, making it a crucial economic asset for the state.
Given the analysis of each statement, the correct combination is that only statements 1 and 3 are true. Therefore, the correct answer is option D: Only 1, 3.
Understanding the geography and economic significance of Goa is crucial for students preparing for competitive examinations, especially those related to Indian geography and state-specific knowledge. It is important to remember the correct locations of states and their capitals, as well as the economic activities that define their importance.