What properties have contributed to plastics being considered a ...

[bio_gurl]

What properties have contributed to plastics being considered a miracle substance? How do those same properties cause plastics to be unusually persistent and damaging in the marine environment?
 
  What will be an ideal response?

Question 2

Recent work by taxonomists at the World Register of Marine Species has eliminated how many previously listed species because they were duplicate identities?
 
  A) Between 100,000 and 150,000
  B) Between 150,000 and 200,000
  C) Between 200,000 and 250,000
  D) Between 250,000 and 300,000
  E) More than 300,000

[janeli1]

Answer to Question 1

The very same properties that make plastics so advantageous make them unusually persistent and damaging when released into the marine environment: They are lightweight, so they float and concentrate at the surface; They are strong, so they entangle marine organisms; They are durable, so they don't biodegrade easily, causing them to last almost indefinitely; They are inexpensive, so they are mass-produced and used in almost everything.

Answer to Question 2

B

[bio_gurl]

Gracias!

[carojassy25]

Excellent