Matching (20) Match items in column A to column B

Column a Column b
1.
A.
Consciousness
2.
B.
Depressants
3.
C.
Stimulants
4.
D.
REM Sleep
5.
E.
Physical Dependence
6.
F.
Nightmares
7.
G.
Jet Lag
8.
H.
Meditation
9.
I.
Nathaniel Keitman
10.
J.
Sleep Apnea
11.
K.
LSD
12.
L.
Marijuana
13.
M.
Sigmund Freud
14.
N.
Circadian Rhythm
15.
O.
Tolerance
16.
P.
Hallucinogens
17.
Q.
Insomnia
18.
R.
Psychoactive Drug
19.
S.
Narcolepsy
20.
T.
Sleepwalking