Duckweed is a small plant that grows in water

Many waterbirds depend on duckweed for food

Duckweed can reproduce rapidly in water that is rich in the nutrients used in agriculture.

Which of these human activities would most likely cause an overgrowth of duckweed in a pond environment?
A.Gradually introducing geese into the pond
B.Fishing in the pond as recreation
C.Planting trees in nearby forests
D.Heavily fertillizing nearby farm fiels
D?

Right, again! :-)

Yes, you are correct. The human activity that would most likely cause an overgrowth of duckweed in a pond environment is heavily fertilizing nearby farm fields (option D). Duckweed can reproduce rapidly in water that is rich in nutrients, and heavy fertilization of nearby farm fields increases the nutrient content in the water, providing ideal conditions for duckweed growth.

To determine which human activity would most likely cause an overgrowth of duckweed in a pond environment, we need to consider the information provided. Duckweed is a small plant that grows in water, and it can reproduce rapidly in water that is rich in nutrients used in agriculture.

Option A: Gradually introducing geese into the pond is not likely to cause an overgrowth of duckweed. While waterbirds, including geese, depend on duckweed for food, the gradual introduction of geese alone would not necessarily result in an overgrowth of duckweed.

Option B: Fishing in the pond as recreation would not contribute to the overgrowth of duckweed. Fishing activities would not directly affect the growth and reproduction of duckweed.

Option C: Planting trees in nearby forests would not be a significant factor in causing an overgrowth of duckweed in the pond environment. The presence of nearby forests and the planting of trees are unlikely to directly impact the growth and reproduction of duckweed.

Option D: Heavily fertilizing nearby farm fields is the most likely human activity that would cause an overgrowth of duckweed in a pond environment. Duckweed thrives in water rich in nutrients used in agriculture, so heavy fertilization of nearby farm fields would introduce an abundance of these nutrients into the water, creating ideal conditions for the rapid growth and reproduction of duckweed.

Therefore, option D, heavily fertilizing nearby farm fields, is the most likely human activity that would cause an overgrowth of duckweed in a pond environment.