Climate Change EQ 1

What type of climate change are we experiencing right now?

• Long term climate change

• Medium term climate change

• Short term climate change

Identify a characteristic of a glacial period.

• Warmer temperatures

• Higher sea levels

• Advancing glaciers

• Smaller land area

Which of the following is NOT an example of proxy data?

• Ocean sediment

• Census data

• Ice cores

• Tree rings

Which of the three proxy data can provide climate data from millions of years ago?

• Tree rings

• Ice cores

• Ocean sediment

Which of the following was an impact of the Little Ice Age?

• Melting ice between Scandinavia and Europe

• Increased agricultural productivity

• Warmer temperatures

• Increased famines, plagues, and crop failure

Which of the following was a cause of the Medieval Warm Period?

• Absence of volcanic activity

• Decrease in incoming solar radiation

• Colder ocean currents

• Increase in volcanic activity

Which of the following is an example of a positive feedback loop?

• Increasing temperatures causing a decrease in albedo

• Increasing temperatures causing an increase in albedo

• Warmer temperatures causing increased weathering causing cooler temperatures

• Cooler temperatures causing decreased weathering causing cooler temperatures

What is meant by the term perihelion?

• The point in the earth's orbit where it is closest to the sun

• The point in the earth's orbit where it is furthest from the sun

• The phase when the earth's orbit is an elliptical shape

Which of the Milankovitch cycles describes variations in the earth's axial tilt?

• Obliquity cycle

• Eccentricity cycle

• Precession cycle

Which of the following is NOT a natural cause of climate change?

• Milankovitch Cycles

• Sunspot activity

• Volcanic emissions

• Positive feedback loops