The ____________ zone is the thin area at the top of the surface ...

[j.rubin]

The ____________ zone is the thin area at the top of the surface zone in which light penetrates. Fill in the blank(s) with the appropriate word(s).

Question 2

____________ is the bending of light or sound waves as it passes through a medium of different density at an angle. Fill in the blank(s) with the appropriate word(s).

[yeungji]

Answer to Question 1

photic

Answer to Question 2

Refraction

[j.rubin]

TY

[yeungji]

You're welcome