Select ALL that apply:

Which of the following has caused repeating 100,000-year cycles of glacial and interglacial periods in the past?

• changes in sun spots (solar activity)

• changes in Earth's Precession (wobble: direction of axis)

• changes in Earth's Eccentricity (shape of earth's orbit)

• changes in Earth's Obliquity (degree of tilt)

According to the data, how many cooling periods occurred during the past 400,000 years?

• 2

• 3

• 4

• 5

Changes in the degree of Earth’s tilt (21.5^o to 24.5^o) as it orbits the Sun is called ___.

• eccentricity

• obliquity

• precession

The wobbling of Earth's axis as it orbits the Sun is called ___.

• eccentricity

• obliquity

• precession

The shape of Earth’s orbit from more circular to ovular occurs due to changes in …

• Precession

• Eccentricity

• Obliquity

• Rotation

What is the period of change in Earth's obliquity?

• 26,000 years

• 41,000 years

• 100,000 years

• 400,000 years

Tags

NGSS.HS-ESS1-4

What is the period of change in Earth's eccentricity?

• 26,000 years

• 41,000 years

• 100,000 years

• 400,000 years

Tags

NGSS.HS-ESS1-4

What is the period of change in Earth's precession?

• 26,000 years

• 41,000 years

• 100,000 years

• 400,000 years

If you increase Earth's axial tilt (obliquity) from 22.0^o to 24.0^o, what will happen to the seasons (Summer and Winter)?

• warmer summers and warmer winters

• warmer summers and colder winters

• cooler summer and colder winters

• cooler summers and warmer winters

Tags

NGSS.MS-ESS1-1

If you decrease Earth's axial tilt (obliquity) from 23.5.0^o to 21.5^o, what will happen to the seasons (Summer and Winter)?

• warmer summers and warmer winters

• warmer summers and colder winters

• cooler summer and colder winters

• cooler summers and warmer winters