Answer:
An increase in the algae in the neighborhood lake could be related to Sarah's farm as a result of the use of fertilizer.
Explanation:
Fertilizers can be used washed into the lake during the rain downpour. When such happens, the fertilizer provides food for the algae already in the lake which can lead to a dramatic increase in the population of the algae.
Take samples from the neighborhood lake reveal that there are high levels of phosphorus and nitrogen which are the key compositions of most fertilizers.
Therefore, it is likely that the lake contains some of the fertilizer that where washed from Sarah's farm.
Answer: The increase in algae could be related to Sarah’s farm due to her use of fertilizer. Fertilizers help produce strong, healthy crops, but they can also wash into lakes and rivers. When they do, they provide a large food supply for the algae living there, which can cause the algae population to increase dramatically. Samples from the neighborhood lake show high levels of phosphorus and nitrogen, the key ingredients of most fertilizers, and a large increase in the algae population. It is therefore likely that the lake contains some of the fertilizer from Sarah’s farm.
Explanation: sample response
