Natural Factors and Climate Change 2025

According to the graph volcanic eruptions

• cause climate warming over a long term basis.

• emit gases and dust into the atmosphere that cause temporary (few years) cooling of the Earth.

• cause long term (decades) cooling of the Earth.

• had nothing to do with the Little Ice Age.

What is happening to global ice levels right now?

• Global sea ice levels are increasing.

• Global sea ice levels are decreasing.

• Global sea ice levels remain exactly the same.

• We don't have enough information about global sea ice levels at this time to know.

Changes to the angle of Earth's rotational axis can lead to ice ages by

• increasing the solar radiation that is reflected off the poles.

• causing an extreme El Niño effect, reducing temperatures enough to form glaciers.

• reducing the solar radiation that reaches the poles, leading to glacier formation.

• triggering volcanic eruptions that block out the sunlight.

When global temperatures are cooler and sea levels are lower

• there's more land area to reflect solar radiation into space.

• there is an increased amount of green house gases in the atmosphere.

• the ocean conveyor belt stops redistribution energy on earth.

• the El Nino Effect causes more precipitation to fall.

What three things are considered in the Milankovitch cycle?

• Eccentricity, Orbital precession, and mass

• Precession, obliquity, and Tectonic Plate Theory

• Orbital eccentricity, and precession

• Orbital eccentricity, obliquity, and precession

Which of the following is false?

• Continental Drift as a result of Plate Tectonics is a major contribution to today’s climate change.

• Continental Drift as a result of Plate Tectonics affected Earth’s climate millions of years ago.

• Continental Drift as a result of Plate Tectonics impacted Earth’s climate by causing the ocean and atmospheric currents to change.

How do sunspots affect the Earth?

• Increased temperature, interrupt radio and satellite signals, create Northern Lights
• They don't affect Earth!
• Decreased temperature, better radio signal, and less sunlight.

... is an astronomical factor that affects Earth's climate.

• Human activities

• The change of shape to Earth's orbital rotation.

• Volcano eruptions

• Tectonic plate movement

Which term describes the changing shape of the Earth's orbit

• axial tilt

• eccentricity

• obliquity

• precession

Can plate tectonics affect climate?

• Yes, the movement of tectonic plates can cause volcanoes to erupt and affect climate.

• no

• maybe