The process by which water heated by the sun enters the atmosphere.
What is evaporation?
100
The burning of fossil fuels or wood.
What is combustion?
100
True or false: animals can take in and use nitrogen from the atmosphere.
False.
100
Phosphorus enters the soil from animals through what process?
Decomposition
100
This type of organism helps to recycle matter by breaking it down with digestive enzymes.
Decomposers
200
Water that falls back to the ground as rain, snow, sleet, or hail.
What is precipitation?
200
Would the burning of fossil fuels increase or decrease the amount of carbon in the atmosphere?
What is increase?
200
The process by which nitrogen is changed from the atmospheric form to a form usable by plants, then consumers.
What is nitrogen fixation?
200
How does phosphorus enter plants?
What is uptake by plant roots?
200
What source provides the heat energy for the water cycle to continue?
What is the sun?
300
Water collects in bodies of water (rivers, lakes, oceans--can also become part of the groundwater).
What is accumulation?
300
What is the name of the process used by autotrophs to convert solar energy to chemical energy that reduces the amount of carbon in the atmosphere?
What is photosynthesis?
300
Which type of organism is responsible for both fixing nitrogen and for returning it back to the atmosphere?
What is bacteria?
300
The breakdown of rock or soil through weathering.
Erosion
300
Which nutrient cycle is involved in the production of all four types of biomolecules?
What is carbon/oxygen?
400
The conversion of water vapor (gas) into liquid water droplets.
What is condensation?
400
Which two processes would cause an INCREASE in carbon dioxide in the atmosphere:
respiration, burning fossil fuels, photosynthesis
What is respiration and burning fossil fuels
400
The process by which certain species of bacteria change nitrogen from the usable form for plants and animals back into the kind found in the atmosphere.
What is denitrification?
400
Phosphorus is part of which very important biomolecule?
nucleic acids
400
True or False: Biogeochemical cycles move nutrients through abiotic and biotic components of an ecosystem.
True
500
The evaporation of water from plant leaves.
What is transpiration?
500
This gas is taken in by plants to make food.
What is carbon dioxide?
500
True or false: Fertilizer adds excess nitrogen to the nitrogen cycle.
True
500
True or False: Phosphorus DOES NOT cycle through the atmosphere.
True
500
THIS ONE IS A RANDOM TOUGHIE :): Which nutrient makes up the majority of the atmosphere?