Plants called ____________________ take up and retain unusually ...

[JGIBBSON]

Plants called ___________________ _ take up and retain unusually large amounts of heavy metals in
  their above-ground parts.

 
  Fill in the blank(s) with the appropriate word(s).

Question 2

In northern states, the most common roadway ___________________ _, common salt (sodium
  chloride), is used in huge amounts and creates saline or even sodic soil conditions that sometimes
  reach toxic levels.

 
  Fill in the blank(s) with the appropriate word(s).

[dyrone]

Answer to Question 1

ANS: hyperaccumulators

Answer to Question 2

ANS: deicer

[JGIBBSON]

Gracias!

[anyusername12131]

Excellent