What is a disturbance? Consider the role of fire in a forest. Compare the consequences of high-frequency versus low-frequency fire, and high severity versus low severity of fire.

Video transcript

Hello everyone and welcome to today's video. So which of the following includes the advantage of periodic forest fires? Well, these forest fires, although there's some very negative are not always going to have negative consequences. So let's go over answer choices so that we can identify positive consequences of these forest fires. Let's begin by answer choice A They can clear the breeze from the forest floor while these forest fires are going to be able to burn away any debris that is present in the forest floor. So this is definitely a correct answer choice and we will not cancel it out. Then we have answer choice B. They expose the forest to sunlight. Well these forest fires are going to be able to burn away the canopy and the undergrowth in these forests, exposing the soil to more sunlight, which is going to allow the seedlings to grow more effectively. So this is definitely a great consequence of these periodic forest fires and we will not cancel it out either. Then we have answer choice C they nourish the soil by burning away some of these plants. They're going to release certain nutrients such as nitrogen and phosphorus and these are going to go directly into the soil so that other plants can then come in and use them. So definitely forest fires will be nourishing the soil. Since we were not able to cancel out any of these answer choices. The correct answer choice is going to be answer choice E out of the above options are correct. That is the end of the video and I really hope this helped you.