You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Marshall_Islands

Context:
Due to its very low elevation, the Marshall Islands are threatened by the potential effects of sea level rise. According to the president of Nauru, the Marshall Islands are the most endangered nation in the world due to flooding from climate change.

Question:
What feature makes the Marshalls susceptible to harm due to rising sea levels?

its very low elevation