6.3 Review Nutrient Cycles

What is one way that people add Nitrogen into the environment?

• By littering
• By using fertilizer on farms
• By burning fossil fuels 

This is essential to living organisms, it is found in nucleic acid and amino acids.

• Nitrogen
• Carbon
• Water
• Phosphorous

What is it called when water vapor cools and changes into a liquid?

• condensation
• respiration
• precipitation
• evaporation

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Which of the following is NOT a stage of the nitrogen cycle?

• organisms breathe in nitrogen gas
• organisms release nitrogen compounds via waste or decomposition
• bacteria convert unusable nitrogen to usable nitrogen
• plants absorb nitrogen compounds from the soil

Tags

NGSS.MS-LS2-3

Which of the following is NOT part of the carbon cycle?

• condensation
• photosynthesis
• combustion
• respiration

Which of these is the greatest cause of harmful levels of carbon in the atmosphere?

• respiration
• combustion
• photosynthesis
• decomposition

Tags

NGSS.MS-ESS3-5

Which of these is NOT a step of the carbon cycle?

• erosion
• respiration
• nitrification
• photosynthesis

Which of these is a step in the carbon cycle, the nitrogen cycle, and the phosphorous cycle?

• condensation
• decomposition
• respiration
• photosynthesis

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Nitrogen fixation turns Nitrogen gas into forms of Nitrogen plants can use. Nitrogen fixation is carried out by bacteria in the soil. If an ecosystem becomes unbalanced and Nitrogen fixations stopped, which of the following would be true?

• The carbon cycle would be affected by the lack of Nitrogen in the air.

• The water cycle would not function properly.

• Plants, animals, and other living organisms would not have the Nitrogen they need to survive.

• nothing would change

Matter and energy are __________________________ because organisms use matter and energy to carry out life’s processes.

• not a part of life

• lost and destroyed

• destroyed

• lost but not destroyed