Biology 0610 · IGCSE · Pollution

Pollution — practice question

The table indicates how well three fish species, and their eggs, can survive in water with different pH values. If the eggs fail to survive, no offspring will be produced. A lake with a pH of 6.0 has breeding populations of all three fish species. If acid rain lowers the pH to 5.0, which result would probably happen?

  • ATrout and perch will survive and produce offspring.
  • BTrout and perch will survive but only perch will produce offspring.
  • CTrout and perch will survive but produce no offspring.
  • DTrout, sea bass and perch will survive but produce no offspring.

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