Human Impacts

Which best describes the change in carbon dioxide levels in Earth's atmosphere since 1960:

• There has been no change

• carbon dioxide levels have been dropping

• carbon dioxide levels have been rising

Tags

NGSS.MS-ESS3-5

Which best explains what happens to carbon dioxide when it is absorbed by the ocean:

• The ocean does not absorb carbon dioxide

• Carbon dioxide reacts with water to produce carbonic acid

• Carbon dioxide reacts with water to produce methane and carbohydrates

• Carbon dioxide reacts with water to produce nucleic acids and proteins

Tags

NGSS.MS-PS1-2

Oceans naturally absorb ​ (a)   from the atmosphere. It then reacts with the water to produce carbonic acid. ​

• carbon dioxide
• methane
• hydrogen sulfide
• Argon
• ozone

Tags

NGSS.MS-PS1-5

An increase in carbon dioxide absorption by the ocean leads to a(n) ​ (a)   in pH, making the ocean more ​ (b)  

• decrease
• acidic
• increase
• basic

Tags

NGSS.MS-PS1-2

Oceans are called carbon sinks, because they​ (a)   from the atmosphere and​ (b)  

• remove carbon
• store it as sediments
• remove oxygen
• create ozone
• remove magnesium
• make bananas

Tags

NGSS.MS-ESS2-1

Bioclastic rocks are made from:

• the solidifying of lava during effusive volcanic eruptions

• the partial melting of rocks due to intense pressure and heat from deep within the Earth

• pieces of living things compressed and cemented together

• laboratories in China, Japan, and the U.S.A.

Tags

NGSS.MS-LS4-1

A collection of marine debris in the North Pacific Ocean.

(a)  

Tags

NGSS.MS-ESS3-3

Describe the great Pacific garbage patch in your own words:

Answer explanation

A massive collection of garbage, mostly plastics, trapped and floating in the North Pacific Gyre currents

The great Pacific garbage patch covers an area of:

• 1.6 million square kilometers

• 500 square kilometers

• 10 square kilometers

• 4.6 billion square kilometers

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

Many ​ (a)   do not wear down; they simply break into smaller pieces.

• plastics
• paper products
• cardboard
• food

Tags

NGSS.MS-PS1-3