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

Responses

erosion caused by livestock overgrazing
erosion caused by livestock overgrazing

application of nutrients to crops
application of nutrients to crops

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

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

sediments released by tilling of soil

1 answer

The two agricultural practices that can lead to algal blooms are:

  1. Application of nutrients to crops - The use of fertilizers can introduce excess nutrients, particularly nitrogen and phosphorus, into water systems, promoting algal growth.

  2. Animal waste accumulated in livestock production - Manure can also contribute significant amounts of nutrients to water systems, leading to the same problem of nutrient enrichment and resultant algal blooms.

So the correct answers are:

  • application of nutrients to crops
  • animal waste accumulated in livestock production