Carbon & Nitrogen Cycles

What are the nutrients that life needs, best remembered in the mnemonic CHNOPS?

• Calcium, Helium, Nitrogen, Oxygen, Phosphorus, Sulfur

• Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, Sulfur

• Chlorine, Hydrogen, Nitrogen, Oxygen, Potassium, Sodium

• Copper, Hydrogen, Nickel, Oxygen, Phosphorus, Silicon

What is the process by which bacteria convert nitrogen in the atmosphere into usable ammonia?

• Nitrogen Leaching

• Nitrogen Fixation

• Nitrogen Assimilation

• Nitrogen Denitrification

How is carbon released back into the atmosphere after being taken in by plants and animals?

• Through nitrogen assimilation

• Through nitrogen fixation

• Through nitrogen leaching

• Through cellular respiration

Tags

NGSS.MS-LS2-3

What is the process by which plants convert carbon dioxide into organic compounds, especially sugars, in the presence of sunlight?

• Photosynthesis

• Cellular Respiration

• Nitrogen Fixation

• Nitrogen Assimilation

Tags

NGSS.MS-LS1-6

What is the process by which organisms convert ammonia into nitrite and then nitrate?

• Nitrogen Assimilation

• Nitrogen Fixation

• Nitrification

• Nitrogen Leaching

What is the purpose of a rotating compost bin?

• To provide aeration for compost

• To store food scraps

• To recycle plastic

• To grow plants

What is the result of the decomposition of biodegradable items in compost?

• Toxic waste

• Nutrient-rich organic material

• Plastic waste

• Metal waste

What are the major elements that a compost supplies plants with?

• Carbon and Nitrogen

• Carbon and Oxygen

• Oxygen and Nitrogen

• Hydrogen and Nitrogen

What is the primary gas in the atmosphere?

• Oxygen

• Hydrogen

• Nitrogen

• Carbon Dioxide

For this question, you must select two (2) answers:

What can excessive nitrogen in bodies of water lead to?

• Increased dissolved oxygen

• Clear water

• Increased algae growth

• Beneficial effects on aquatic life

• Harmful effects on aquatic life