IA study guide part 2 Questions

What are examples of short-term natural fluctuations associated with climate change?

• El Niño and volcanism

• Milankovitch cycles

• Earth's orbit variations

• Ice ages

What are examples of long-term natural fluctuations associated with climate change?

• El Niño and volcanism

• Milankovitch cycles

• Hurricanes

• Tornadoes

What causes El Nino?

• Changes in ocean currents

• Increased volcanic activity

• Solar flares

• Earthquakes

What causes La Nina?

• Decreased solar activity

• Changes in ocean currents

• Increased volcanic activity

• Earthquakes

What are the effects of El Nino?

• Cooler ocean temperatures

• Increased rainfall in some regions

• Decreased volcanic activity

• Stronger trade winds

What are the effects of La Nina?

• Warmer ocean temperatures

• Decreased rainfall in some regions

• Increased volcanic activity

• Weaker trade winds

What direction do trade winds usually travel?

• North to South

• East to West

• South to North

• West to East

What direction do trade winds usually travel?

• East to West

• North to South

• West to East

• South to North

What causes El Nino?

• Weakening of trade winds

• Strengthening of trade winds

• Increase in ocean salinity

• Decrease in ocean temperature

What causes La Nina?

• Strengthening of trade winds

• Weakening of trade winds

• Increase in ocean salinity

• Decrease in ocean temperature