Insolation Question Preview (ID: 56750)

Use Your Knowledge Of Earth Science To Answer All Questions In The Data Set. You Will Need Your Earth Science Reference Tables And A Calculator To Answer Some Of The Questions. Good Luck.

Why is less insolation received at the equator in June than in March or September?

a) The daylight period is longest at the equator in June.
b) Winds blow insolation away from the equator in June.
c) The Sun’s vertical rays are north of the equator in June.
d) Thick clouds block the Sun’s vertical rays at the equator in June.

This graph shows that insolation varies with

a) latitude and time of day
b) latitude and time of year
c) longitude and time of day
d) longitude and time of year

Why is insolation 0 cal/cm2/min from October through February at 90º N?

a) Snowfields reflect sunlight during that time.
b) Dust in the atmosphere blocks sunlight during that time.
c) The Sun is continually below the horizon during that time.
d) Intense cold prevents insolation from being absorbed during that time.

The amount of insolation reflected from the Earth's surface at a particular time is most dependent on the
a) angle of the Sun's rays
b) temperature of the Earth's surface
c) amount of nitrogen in the atmosphere
d) distance from the Earth to the Sun

The ozone layer helps life on Earth because ozone
a) modifies the normal El Niño weather pattern
b) reflects insolation from the Sun
c) absorbs damaging ultraviolet radiation from the Sun
d) deflects winds from a straight line to a curved path

At which location are the Sun's noontime rays perpendicular to Earth's surface at the Tropic of Cancer? (23.5° N)?

a) A
b) B
c) C
d) D

When the Sun appears to travel along path D at Jamestown, which latitude on Earth receives the most direct rays from the Sun?

a) 42° N
b) 23.5° N
c) 0°
d) 23.5° S

How many times will the Sun’s perpendicular rays cross Earth’s Equator between March 1 of one year and March 1 of the next year?
a) 1
b) 2
c) 3
d) 4

At what time of day is the Sun at position S?

a) 6 a.m.
b) 9 a.m.
c) 3 p.m.
d) 6 p.m.

The greatest duration of insolation in Jamestown occurs when the Sun appears to travel along path

a) A
b) B
c) C
d) D

Play Games with the Questions above at
To play games using the questions from above, visit and enter game ID number: 56750 in the upper right hand corner or click here.

Log In
| Sign Up / Register