A bloodworm is an organism found in water that is heavily polluted. The diagram shows the point at which raw sewage enters a river. At which location would the number of bloodworms be the lowest?
Biology 0610 · IGCSE · Pollution
A bloodworm is an organism found in water that is heavily polluted. The diagram shows the point at which raw sewage enters a river. At which location would the number of bloodworms be the lowest?