B) It's known as a Fault. That's why they say "Don't drill on a fault line," because when fault lines move they cause earthquakes, and other occurrences.
<h2>Answer:</h2><h2><em><u>The hippopotamus and the oxpecker bird are in a mutualistic and parasitic relationship. This is because the oxpecker bird gets food and protection from the hippopotamus. However, the bird gets food by making little cuts in the hippopotamus to obtain insects. This isn't entirely harmful to the hippopotamus though.</u></em></h2><h2><em><u>Hope</u></em><em><u> this</u></em><em><u> helps</u></em><em><u> you</u></em><em><u> ❤️</u></em></h2><h2><em><u>Mark</u></em><em><u> me</u></em><em><u> as</u></em><em><u> brainliest</u></em><em><u> ❤️</u></em></h2>
