Question

what pollutant causes an increase in algal growth?
nutrients coming from fertilizers
chemicals used to wash cars
sediments from agriculture fields
oils coming from cars
rewatch

Explanation:

Fertilizers contain nutrients like nitrogen and phosphorus. When these nutrients enter water bodies (e.g., via runoff), they act as a food source for algae, leading to rapid algal growth (eutrophication). Other options (car wash chemicals, agricultural sediments, car oils) do not provide the key nutrients that drive significant algal blooms.

Answer:

nutrients coming from fertilizers