Seasons, Rotation, Revolution, Milankovitch Cycles

What season is the Northern Hemisphere experiencing?

• Fall 
• Winter
• Spring
• Summer

Which location would receive no sunlight?

• South pole

• Equator

• North pole

• south and north poles

Why is it colder in winter than in summer at the poles?

• The earth is farther away from the sun in winter.
• The pole is tilted away from the sun and receiving less direct sunlight.
• The pole is tilted toward the sun and receiving less direct sunlight.
• The snow and rain during winter lowers the temperatures.

Which answer choice correctly labels the seasons in the Northern Hemisphere, beginning with position #1?

• Winter, fall, summer, spring
• Summer, fall, winter, spring
• Spring, fall, summer, winter
• Fall, winter, spring, summer

During the winter solstice when the Northern hemisphere is tilted away from the Sun, Colorado receives more

• direct sunlight

• indirect sunlight

• the same amount as every other season

If the tilt of Earth’s axis were increased from 23.5° to 30°, summers in Colorado State would become

• Cooler, and winters would become cooler

• Cooler, and winters would become warmer

• Warmer, and winters would become warmer

• Warmer, and winters would become colder

The diagrams represent 23.5° N latitude at noon at three different times of the year. As viewed in order from A to B to C, these diagrams represent which months and how is the intensity of sun changed?

• December → March → June; and decreasing intensity

• December → March → June; and increasing intensity

• June → September → December; and decreasing intensity

• June → September → December; and increasing intensity

This animation represents which of the Milankovitch Cycles?

• Eccentricity

• Obliquity

• Precession

This animation represents which of the Milankovitch Cycles?

• Eccentricity

• Obliquity

• Precession

This animation represents which of the Milankovitch Cycles? (tilt of the Earth's axis)

• Eccentricity

• Obliquity

• Precession