Biology 0610 · IGCSE · Pollution

Pollution — practice question

A bloodworm is an organism found in water that is heavily polluted. The diagram illustrates raw sewage entering a river. In which place would the number of bloodworms be lowest?

    Worked solution & mark scheme

    This 1-mark question has a full step-by-step worked solution and mark scheme.

    • Full mark scheme, point by point
    • Step-by-step worked solution
    • Write your answer & get it marked instantly by AI