Which two facts about plastic affect the environment in a negative way? there are many kinds of plastics to choose from. some plastics release toxic chemicals. they’re good insulators. they don’t break down over time.

B and D

Some plastics release toxic chemicals

They don't break down over time

Explanation:

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.