State two harmful effects of acid rain on the environment.

Two harmful effects of acid rain on the environment are:

1. Damage to aquatic life — Acid rain can lower the pH of water bodies, making them acidic. This acidity can harm aquatic organisms such as fish, amphibians, and aquatic plants.
2. Erosion of buildings and monuments — Acid rain corrodes building materials like limestone and marble, leading to the deterioration of historical monuments and structures.