Select the correct answer from each drop-down menu. Algae grows quickly when there is an increase in _______ and _______ in the water. As more algae survive, _______ increases. When these algae start to die and decompose, bacteria consume much of the _______ in the water.
1) oxygen, sunlight, carbon dioxide, nutrients
2) nitrogen, phosphorus, oxygen, sunlight
3) carbon dioxide, nutrients, nitrogen, phosphorus
4) sunlight, carbon dioxide, nutrients, oxygen
