Question

Which of the following agricultural practices can lead to algal blooms? Select the two correct answers.(1 point)
Responses

application of nutrients to crops
application of nutrients to crops

animal waste accumulated in livestock production
animal waste accumulated in livestock production

erosion caused by livestock overgrazing
erosion caused by livestock overgrazing

withdrawals of water for crop irrigation
withdrawals of water for crop irrigation

sediments released by tilling of soil

Answers

GPT-4o mini
The two agricultural practices that can lead to algal blooms are:

1. **Application of nutrients to crops** - Excessive use of fertilizers can result in nutrient runoff, particularly nitrogen and phosphorus, into water bodies, which often leads to algal blooms.

2. **Animal waste accumulated in livestock production** - The runoff from areas where livestock waste is concentrated can contribute high levels of nutrients to nearby water sources, promoting algal growth.

These practices introduce excess nutrients to aquatic ecosystems, creating conditions that are favorable for algal blooms.

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