Final answer:
External obstacles that affect listening include environmental noise, physical disabilities like hearing loss and poor eyesight, and other distractions that can interfere with attention and comprehension.
Step-by-step explanation:
External obstacles that affect listening are numerous and can significantly impact a person’s ability to receive and process information. For students, in particular, listening challenges can be detrimental to their educational experience. Some common external obstacles include environmental noise, such as the chatter in a crowded restaurant or the sudden sound of breaking glass, which can disrupt attention and focus. Additionally, physical disabilities like hearing loss and poor eyesight can present significant barriers to effective listening and comprehension. For instance, students with hearing loss may miss critical verbal cues or be unable to follow along in a conversation when background noise is present. Other examples of these obstacles include a lack of interest, intellectually demanding material, and even physiological responses to the material, such as headaches from straining the eyes. It is vital to recognize these barriers in order to seek alternative methods for accommodating and supporting individuals facing these challenges. Providing assistive technology, such as hearing aids or visual aids, and creating a conducive learning environment free from distractions or barriers can enhance listening and learning outcomes.