ch 28.4 Flashcards
An increase in the average temperature of earths near-surface air and oceans
Global warming
The warning of the pacific ocean off the coast of western south america that occurs every 3 to 10 years.
El Nino
Occurs when trader winds in the pacific are unusually strong and surface water i colder than normal.
La Nina
What are the two changes that earth climate undergoes?
Seasonal and long-term changes
How do seasonal changes occur?
How it revolves around the sun
Which hemisphere experiences summer?
tilted toward the sun
What was the period called when earths surfaces was covered by ice?
ice age
How long ago did earths climate did earth meat its current pattern?
3,000 years ago
What are the changes related to earths orbit?
The axis, the timing of the seasons, and the shape of the orbit
How do humans impact climate?
Deforestation, and industries and agricultural practices
What is deforestation?
Clearing a large area of forest land
How does deforestation defect climate change?
To remove carbon dioxide
What are the two ways that the carbon cycle is effected?
