Question

give reasons for the following We should not let weeds grow in water bodies.​

Answer 1

Each plant is fighting its neighbor for food, water and sunlight. Weeds, in particular, are survivors. Unlike many garden and landscape plants, weeds often thrive in any soil, with minimal water and limited food. They grow fast, shading out desirable plants, stealing water and nutrients as they grow.

Answer 2

Upsets the equilibrium of physico-chemical properties of water. Cause imbalance in dissolved oxygen budget. Reduce water movement, thereby limits oxygen circulation in water. Some weeds release toxic gases that cause fish death and add foul smell to water.