2. The year graphs shown below represent hours of daylight and solar energy for what location? Hours of daylight
January 1
24
20
16
JAN FEB MAR APR MAY NAG SER OCT NOV DEC
500
400
Solar energy
(W/m2)
300
200
100
0
AN FERM
APR MAY JUN AUG SEP OCT NOV 060
O A North Pole (90° N)
O B. Arctic Circle (66.5°N)
O C. Tropic of Cancer (23.5°N)
O D. Equator (0)

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The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .

Idon't know hope someone you