Unit 5 - Ecosystems: Biogeochemical Cycles

Choose all that apply. The following cycles include a gaseous state.

• carbon

• nitrogen

• phosphorus

• hydrologic

Tags

NGSS.MS-LS1-6

The carbon cycle moves atoms and molecules containing the element carbon between

• the biosphere alone

• the lithosphere and the biosphere only

• the atmosphere and biosphere only

• sources and sinks

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Carbon spends varying amounts of time in different reservoirs.

• True

• False

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In living things carbon cycles between ​ (a)   and respiration.

• photosynthesis
• cellular respiration
• sedimentation
• combustion

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Decomposition at the Earth's surface returns carbon to the

• biosphere

• lithosphere

• atmosphere

• hydrosphere

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Decomposition and sedimentation have led to the storage of carbon over millions of years. The burning of fossil fuels quickly moves that stored carbon from the geosphere to the

• atmosphere

• biosphere

• hydrosphere

• lithosphere

Tags

NGSS.HS-ESS2-6

Choose all the apply. Identify the processes that involve bacteria converting nitrogenous compounds.

• nitrogen fixation

• assimilation

• nitrification

• denitrification

Tags

NGSS.MS-LS2-3

Nitrogen makes up what percent of the atmosphere?

Which compound are plants and animals unable to use or excrete due to a triple bond?

• N₂

• NO₃ -

• NH₄ +

During which process do legumes and/or bacteria in the soil convert nitrogen gas from the atmosphere into ammonia and/or ammonium?

• nitrification

• denitrifcation

• nitrogen fixation

• assimilation