What did DDT do to the environment?

Answer 1

DDT killed bad insects but it also caused the bald eagle to almost become extinct. Rachel Carson wrote about the problems in her book Silent Spring. He book convinced many to do a world wide ban.

Answer 2

DDT pesticide led to the near extinction of many birds because the eggs would have thin shells and break before hatching.

Borneo used DDT to kill the mosquitoes that carried diseases. However the roaches stored DDT in their bodies and it made the lizards that ate them ill and the lizards got slower. This made it easy for cats to eat the lizards. The cats that ate the lizards, died. This led to an increase in the rat population. It also led to an increase in caterpillar population because the lizards were not there to eat them. The caterpillars ate the roofs of many homes. Eventually Borneo had to air lift cats by parachutes.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2636426/

Answer 3

1. Egg shells became thicker, and more chicks were born.

2. Safer pesticides were produced.

Answer 4

DDT causes the bird's egg's shells to be soft and break when the bird sits on them.