Chapter 1 - Hazardous Earth - Natural Climate Change - Orbital Changes Flashcards
1
Q
What are the main four causes of climate change?
A
Orbital Changes
Volcanic Activity
Solar Output
Asteroid Collisions
2
Q
The three cycles of orbital change are?
A
Stretch
Tilt
Wobble
3
Q
Orbital change: Stretch?
A
Path of the Earth’s orbit around the sun changes from a circle to an eclipse (96,000 years repeat).
4
Q
Orbital change: Tilt?
A
Earth’s axis is tilted at an angle as it orbits the Sun. (41,000 years repeat).
5
Q
Orbital change: Wobble?
A
The axis of the Earth wobbles on a cycle of about (22,000 years).
6
Q
What do the three cycle of orbital change affect?
A
The amount of solar radiation (energy) the Earth receives.
