Comprehension challenges typically result from all of the ...

[abc]

Comprehension challenges typically result from all of the following except
 
  a. poor concentration.
  b. confusing sentences.
  c. material that is concrete.
  d. a lack of background knowledge.

Question 2

Of the following sentences, the one that contains a misplaced word is:
 
  a. Autumn is typically the best time to plant trees and shrubs.
  b. The intense heat of summer snowfall is over and cooler temperatures have arrived.
  c. Planting in the fall gives trees and shrubs time to establish their roots.
  d. In the spring, plants can put all their energy into producing leaves and flowers .

[s.meritte]

Answer to Question 1

c

Answer to Question 2

b