Biogeochemical Cycles

The process of plants losing water through their leaves is called ____.

• condensation
• evaporation
• transpiration
• exhaling

Tags

NGSS.MS-ESS2-4

What is the most abundant gas in the atmosphere?

• hydrogen
• oxygen
• helium
• nitrogen

Why do living things need nitrogen?

• To get energy
• To make amino acids
• To make proteins
• To make proteins AND amino acids

What are the swellings found on the roots of legumes called?

• noodles
• nodularisms
• nodules
• tubers

Where are denitrifying bacteria found?

• In the soil
• Root nodules
• In dead things
• In the atmosphere

Tags

NGSS.MS-LS2-3

Where are nitrogen-fixing bacteria found?

• In the soil
• Root nodules
• In dead things
• In the atmosphere

The total amount of the carbon on Earth is constant.

• True

• False

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

How nitrogen is "fixed" into useable form for plants

• only through action of bacteria
• only through lightning
• through action of bacteria & lightning
• through photosynthesis

Tags

NGSS.MS-LS2-3

Which of the following statements is true of the phosphorus cycle?

• Phosphorus enters the atmosphere as phosphates.
• The phosphorus cycle utilizes the processes of erosion, and weathering.
• Phosphates are used in carbohydrate and glucose storage.
• The phosphorus cycle utilizes bacteria to breakdown phosphates and make them available for plants.

How do animals get the phosphorous they need?

• decomposing
• combustion
• eating plants 
• breathing it in

Tags

NGSS.MS-LS2-3