If you live on a river delta or coastline, you may not be able to eat the local shellfish because of high levels of toxins present in the water. Why?

Shell fish is used as a biological indicator of pollution.

Explanation:

The clams, mussels and shellfishes are some of the organism which can be used as a biological indicator of the pollution.

This is so because they have the ability to filter and concentrate the pollutants such as pesticides, and other pollutants in water.

These organisms can be toxic to people as it includes pollutants. This can be a early warning that the nearby water is getting highly polluted.

do yall know the answer?

question: which statement best describes the different properties of metals?

answer: they are shiny and bend without breaking.

since metals have certain characteristics properties, they include the following: they are ductile, malleable, shiny, hard, lustrous, flexible and they are good conductor of heat and electricity. so therefore, metals are not dull and they are not non-flexible as listed. instead, they are shiny and flexible.

hope this , have a good day. c;