B.12(D)

As part of the nitrogen cycle, animals acquire some amino acids by doing which of the following?

• Breathing air

• Eating plants

• Drinking water

• Producing waste

Tags

NGSS.MS-LS2-3

This diagram demonstrates why the ocean is a large carbon sink.

An increase in the amount of carbon dioxide in the atmosphere can cause atmospheric temperatures to increase. Which statement explains how this could affect the ocean as a carbon sink?

• Less atmospheric carbon dioxide would be available to phytoplankton.

• Dissolved carbon dioxide gas in the ocean would increase because surface winds would cause a deeper circulation pattern, making more room for the gas.

• Less carbon dioxide gas would be contained in the ocean because increasing precipitation would dilute the carbon entering the ocean.

• Less carbon dioxide would be dissolved in the ocean because increasing atmospheric temperatures would cause ocean temperatures to increase.

Tags

NGSS.HS-ESS2-6

Atmospheric nitrogen has to be combined with other elements, or fixed, in order to be used by plants. Lightning is one way that nitrogen is fixed. When lightning occurs, the extreme heat breaks the bonds in nitrogen molecules, allowing nitrogen to combine with oxygen and form nitrogen oxides. In what way is most of the nitrogen fixed by lightning made available for use by plants?

• It is moved by the wind toward dry areas.

• It is incorporated into the exoskeletons of flying insects that eat plants.

• It is inhaled and exhaled by birds roosting in trees during rainstorms.

• It is carried by rain to the soil.

The diagram below represents the nitrogen cycle in a student’s aquarium. Ammonia, nitrites, and, to a lesser degree, nitrates can be harmful to fish. The student wants to keep the nitrogen in this aquarium cycling normally without having to continually change the water. Which of the following should the student add more of to help remove nitrates and improve the natural cycling of nitrogen in this aquarium?

• Fish

• Plants

• Nitrobacter

• Water

Tags

NGSS.MS-LS2-3

How are burning of fossil fuels and volcanic eruptions similar with respect to their effects on the carbon cycle?

• Both remove carbon from the atmosphere.
• Both add carbon to the atmosphere.
• Both add carbon to the lithosphere.
• Both remove carbon from the lithosphere.

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS2-5

Organisms that play a role in the nitrogen cycle

• only plants
• only animals
• only bacteria
• plants, animals, & bacteria

Tags

NGSS.MS-LS2-3

A consequence of human disrupting the carbon cycle is

• Eutrophication
• Algal Bloom
• Global Climate Change
• Acid Rain

Tags

NGSS.MS-ESS3-4

Which of the following best explains why matter must travel through cycles?

• There is an unlimited amount of matter in the universe, so it can take on any form at any time
• There is a fixed amount of matter in the universe, so it must take on different forms at different times

Which process is taking place at step #1 in the carbon cycle?

• respiration
• photosynthesis
• burning fossil fuels
• decomposition

Tags

NGSS.MS-LS1-6

Deforestation by burning has been described as a "double whammy" to the environment, meaning it has 2 negative impacts. Why is this description accurate? 

• Forest burning releases CO₂ while decreasing oxygen, which disrupts cycles
• Deforestation reduces the amount of oxygen in the atmosphere, which depletes the ozone layer
• Forest clearing is often followed by land development, which often leads to increased noise pollution
• Deforestation increases the number of plant and animal species by destroying habitat

Tags

NGSS.MS-ESS3-4