chapter 28.4 Flashcards
global warming
an increase in the average temperature’s of Earth’s near- surface air and oceans
El Nino
is the warming of the Pacific Ocean off the coast of western South America that occurs every 3 to 10 years
La Nino
which occurs when trade winds in the Pacific are unusually strong and surface water is colder than normal
what are 2 earth’s climates that undergoes?
seasonal and longterm
how do seasonal changes happen?
earths revolves around the sun
which hemisphere is in summer?
hemisphere that is tilted towards the sun
what is the period of time where earth’s surface was covered in ice?
ice age
how long ago did the world reach its current path?
3,000 years ago
what are some factors that cause climate change?
- Earths axis
- Shape of the orbit
- Timing of the season
how do humans created climate change?
- energy consumption’s
- deforestation
- industrial and agricultural practices
what is deforestation?
where a lot of trees get nocked down/ burned down
how can deforestation create climate to increase?
trees remove carbon dioxide with fewer trees, more CO2 is released
what are two ways the carbon cycle affected?
- deforestation
- loss of vegetation
