Unit 4 Part 2 - Climate Change and Ocean Acidification

What is the difference between natural and anthropogenic climate change?

• Anthropogenic climate change is human-related, while natural climate change is caused by Earth processes.

• Anthropogenic climate change is a natural process, while humans are causing natural changes to occur.

• Anthropogenic and natural climate change are both caused by natural Earth processes.

• Anthropogenic and natural climate change are both caused by human activity.

Select the three main causes of natural climate change we discussed in class.

• Tectonic Activity

• Solar Activity

• Orbital Variations (Milankovitch Cycles)

• Ocean Acidification

Tags

NGSS.HS-ESS2-4

NGSS.HS-ESS3-5

True or False: The Milankovitch cycles CAN explain Earth's current warming trend.

• True

• False

Describe the Milankovitch cycle of ECCENTRICITY and give the length of one full cycle.

• The shape of Earth's orbit is elliptical and it changes. One full cycle is 100,000 years

• The shape of Earth's orbit is elliptical and it changes. One full cycle is 41,000 years

• Earth is tilted and the angle changes from 21.5-24.5 degrees. One full cycle is 41,000 years.

• Earth wobbles. The north pole changes the direction it is facing. One full cycle is 26,000 years.

Tags

NGSS.HS-ESS3-5

Describe the Milankovitch cycle of OBLIQUITY (axial tilt) and give the length of one full cycle.

• Earth is tilted and the angle changes from 21.5-24.5 degrees. One full cycle is 26,000 years.

• The shape of Earth's orbit is elliptical and it changes. One full cycle is 41,000 years

• Earth is tilted and the angle changes from 21.5-24.5 degrees. One full cycle is 41,000 years.

• Earth wobbles. The north pole changes the direction it is facing. One full cycle is 26,000 years.

Tags

NGSS.HS-ESS3-5

Describe the Milankovitch cycle of PRECESSION and give the length of one full cycle.

• Earth wobbles. The north pole changes the direction it is facing. One full cycle is 100,000 years.

• The shape of Earth's orbit is elliptical and it changes. One full cycle is 26,000 years

• Earth is tilted and the angle changes from 21.5-24.5 degrees. One full cycle is 41,000 years.

• Earth wobbles. The north pole changes the direction it is facing. One full cycle is 26,000 years.

Events in Earth's history that have nearly eliminated all life on Earth are called what?

• Mass Extinction Events/Extinction Level Events (ELE)

• Regional Ressurection Extinction Event

• Mass Spawning

• Large-scale Fossilization

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-5

Anthropogenic climate change may cause global warming or cooling and ________ ____________.

• mass spawning

• ocean acidification

• natural selection

• species evolution

Tags

NGSS.HS-ESS3-5

NGSS.HS-LS4-5

What is causing Earth’s oceans to become more acidic?

• Increase of carbon dioxide absorbed by the oceans.

• Decrease of carbon dioxide absorbed by the oceans.

• Increase of free oxygen in the environment

• Decrease of free oxygen in the environment

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS2-5

Select all that are consequences that would result in our oceans becoming more acidic.

• extinction of marine life results in less food for billions of people

• imbalance of carbon cycle

• shells and exoskeletons may not be fully formed

• atmosphere becomes cleaner

• worldwide global cooling event

Tags

NGSS.HS-LS2-5

NGSS.HS-LS2-6

NGSS.HS-LS4-5