OBJECTIVE FORESTRY

Detailed explanation-1: -Biomagnification happens when toxic chemicals, like DDT, whose remains in the environment are consumed indirectly by organisms through food. When an organism in the higher food chain consumes the lower organism containing such chemicals, the chemicals can get accumulated in the higher organism.

Detailed explanation-2: -Biomagnification is the method of accruing toxic elements by different organisms within a food chain. A prominent example of it is the presence of mercury within predatory fish. This level is so high that consuming these can cause cancer.

Detailed explanation-3: -How do toxins build up through the food web? Persistent chemicals, like some of the plasticisers used to make plastic water bottles, don’t break down naturally so remain in the environment for a very long time. They get absorbed by organisms at the bottom of the food chains and build up at higher levels.