Unit 5 Exam Review

What is the main cause of the Earth's rapid and unusual climate changes that are occurring right now?

• increased carbon emissions

• the Sun

• the Greenhouse Effect

• coral bleaching

Tags

NGSS.HS-ESS3-5

NGSS.HS-ESS2-4

NGSS.HS-ESS2-6

Why can carbon dioxide be harmful to ocean ecosystems?

• Carbon dioxide is not natural.

• Carbon dioxide is acidic and traps heat.

• Carbon dioxide is toxic to plants and animals.

• Carbon dioxide has a high pH.

Tags

NGSS.HS-ESS3-5

NGSS.HS-ESS2-6

NGSS.HS-LS2-5

Describe coral bleaching.

• Bleach is polluting coral reefs and turning them white.

• Corals turn white after they become separated from their symbiotic partners.

• Corals turn white after being exposed to strong UV light from the Sun.

• People are bleaching coral reefs for tourism.

Tags

NGSS.HS-ESS2-4

NGSS.HS-LS4-5

Why are zooxanthellae important?

• They create food for corals.

• They are food for corals.

• They protect the corals.

• They produce carbon dioxide for the corals.

Tags

NGSS.HS-LS2-5

Which two changes to ocean water most heavily contribute to coral bleaching?

• increased temperatures and decreased pH

• decreased temperatures and increased pH

• increased pollution and decreased sunlight

• decreased oxygen and increased pollution

Tags

NGSS.HS-ESS3-5

Which process is contributing to coral bleaching?

• ocean acidification

• coral intoxication

• carbon poisoning

• zooxanthellae dispersal

Why are corals important to ocean ecosystems?

• Coral reefs support 25% of marine life.

• Corals produce oxygen.

• Corals absorb carbon dioxide.

• Coral reefs neutralize pH.

Tags

NGSS.HS-LS2-2

True or False: Coral reefs provide life-saving medical compounds to scientists and doctors.

• True

• False

True or False: Coral reefs provide income for coastal families through tourism and fishing.

• True

• False

Tags

NGSS.HS-ESS3-1

True or False: Coral reefs are becoming immune to ocean acidification due to natural selection.

• True

• False

Tags

NGSS.HS-LS4-4