Question

Which of the following contributes to water pollution?

Answer 1

What are our choices?

Answer 2

chemical pesticides sparyed on farmland, algae bloom, both, or neigther

Answer 3

Both. Pesticides can be washed into the water system by rainwater (or drain, if they are very close to a water source), algae blooms can contain harmful toxins (google 'red tide') depending on the species and conditions).

Answer 4

okay thanks