Short and long term climate change HW quiz

In a La Niña, winds and currents travel __________ __________ but are stronger than usual.

• east to west

• west to east

• north to south

• south to north

La Niña is a complementary condition to El Niño, resulting in the ENSO.

• TRUE

• FALSE

During an El Niño, warm water piles off of South America and cold water can't upwell. As a result, the (a)   can't rise and so small organisms have no food source.

• nutrients

• minerals

• vitamins

• proteins

Which of the following is not true about El Niño?

• It has no effect on fish population

• It drags warm water back across the Pacific Ocean

• It causes weakening or reverse of the trade winds

• None of the above

Fill in the blank(s): La Niña years often follow El Niño years and occur when the __________ ocean is cooler than normal.

• pacific

• atlantic

• indian

• arctic

The changes in climate pattern over the tropical Pacific Ocean that occur every 2-7 years are caused by the ENSO.

• TRUE

• FALSE

The tilt of Earth's axis changes in magnitude over a cycle that lasts about 40,000 years.

• TRUE

• FALSE

When the tilt angle of the Earth’s axis is smaller, summers and winters differ less in temperature.

• TRUE

• FALSE

Carbon dioxide and methane levels in the atmosphere are correlated with temperature.

• TRUE

• FALSE

Which of these can cause climate to change?

• The tilt of the Earth’s axis

• The amount of energy the Sun produces over the years

• Asteroid impacts

• All of these