El Nino and La Nina Quiz

What is the El Nino Southern Oscillation?

• A periodic shift in atmospheric pressure, wind patterns, and ocean temperatures in the Southern Pacific

• A global mixing of ocean currents that connects all of the world's oceans

• A large ocean circulation pattern caused by global wind patterns

• An environmental phenomenon that affects global ocean surface currents

What are the environmental changes and effects of El Nino and La Nina events?

• Changes in the Pacific Ocean surface temperature, global wind patterns, and ocean currents

• Changes in the Atlantic Ocean surface temperature, global wind patterns, and ocean currents

• Changes in the Indian Ocean surface temperature, global wind patterns, and ocean currents

• Changes in the Arctic Ocean surface temperature, global wind patterns, and ocean currents

What influences El Nino and La Nina events?

• Atmospheric pressure and wind patterns

• Ocean temperatures and currents

• Global warming and climate change

• Geological and geographical factors

What are the environmental impacts of El Nino and La Nina events?

• Different impacts on different areas

• No significant environmental impacts

• Positive impacts on all areas

• Negative impacts on all areas

What is a gyre?

• A large ocean circulation pattern caused by global wind patterns

• A periodic shift in atmospheric pressure, wind patterns, and ocean temperatures in the Southern Pacific

• A global mixing of ocean currents that connects all of the world's oceans

• An area of warm surface water moving away from a landmass

What is upwelling?

• An area of warm surface water moving away from a landmass

• A large ocean circulation pattern caused by global wind patterns

• A global mixing of ocean currents that connects all of the world's oceans

• An area where cold water from lower in the ocean is brought up to the surface

What is the thermohaline circulation?

• A movement of ocean currents that mixes salt, nutrients, and temperature through all of the world's oceans

• A periodic shift in atmospheric pressure, wind patterns, and ocean temperatures in the Southern Pacific

• A large ocean circulation pattern caused by global wind patterns

• A global mixing of ocean currents that connects all of the world's oceans

What is the major indicator of an El Nino event?

• Decreased ocean surface temperature

• No change in trade winds

• Stronger than normal trade winds

• Weakening and reversal of trade winds

What are the effects of El Nino on South America?

• Cooler and drier conditions

• No significant effects

• Increased hurricane activity

• Warmer and rainier conditions

What are the effects of La Nina on Southeast Asia?

• Increased rainfall and flooding

• No significant effects

• Decreased monsoon activity

• Drought conditions