I think it would be D. A patient tripping over a chair in the waiting room.
Answer:
runoff from a nearby hog farm
Explanation:
Hog farming or pig farming is becoming common place today. Animal droppings are known to be rich in nitrates, phosphates as well as bacteria.
Nitrates and phosphates are essential nutrients required by algae in lake water. Hence, runoff from a hog farm supplies a lot of nutrients to lake water.
Similarly, the run off introduces enormous bacterial content that is contained in the droppings of these animals.
Answer:
A) being involved in many activities and organizations
The visible light spectrum is the segment of the electromagnetic spectrum that the human eye can see.
