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WorksheetsNutrient Cycles Practice Quiz
Total questions: 30
Worksheet time: 16mins
Cars and industry burning fossil fuels is an example of ____ that releases ____ into the air.
Respiration; CO2
Combustion; O2
Transpiration; O2
Combustion; CO2
The release of water vapor from plants is called
combustion
transpiration
evaporation
condensation
Matter cannot be created nor destroyed, it is converted from one form to another form is known as
The Law of Conservation of Matter
The Law of Saving the Ecosystem
The Law of Conservation of Energy
The Principle of Ecosystem Change
The remains of ancient plants and animals that have been pressurized and buried for millions of years can be mined as
limestone.
calcium carbonate.
wood.
fossil fuels.
Denitrifying bacteria are responsible for changing
N2 gas into ammonia
N2 gas into nitrates
proteins and DNA into ammonia
ammonia and nitrates into N2 gas
Most of the nitrogen found on earth is in
living things
the ocean
the atmosphere
buried in rocks
Legume plants are
any green plant that does photosynthesis
bean plants that contain nodules of bacteria on their roots
an important plant in the water cycle
plants that have become part of our fossil fuels
Non-legume plants can only use nitrogen in the form of
N2 gas
ammonia (NH3)
nitrates (NO3)
they can use any of these
The strong triple bond between N-N molecules can be broken by all of the following except
lightning
a chemical process used to make fertilizer
nitrifying bacteria
wearing down of rocks to create sand
Phosphorus is important in living cells to make
carbohydrates
proteins
DNA and RNA
storage vacuoles
Nitrogen is needed to make ______ in living organisms.
saturated fatty acids.
lipids and RNA.
proteins and DNA.
carbohydrates.
Plants, fungi and animals give off CO2 gas into the air when they do
photosynthesis.
cell respiration.
transpiration.
evaporation.
The process of water seeping into the ground is called
infiltration.
percolation.
condensation.
seepage.
Clouds are formed from
precipitation and evaporation.
evaporation and condensation.
transpiration and evaporation.
infiltration and condensation.
Water moving deeper into the ground to become part of our ground water supply is
infiltration.
percolation.
fossil fuels.
precipitation.
Water flowing over the land, carrying nutrients and pollution as it drains into larger rivers and the ocean is called
condensation.
evaporation.
runoff.
percolation.
A storage area for underground water is known as a(n)
aquifer.
reservoir.
underground river.
sink.
When excess nitrates and phosphates from surface runoff get into water and they cause an over-production of algae and cyanobacteria that pollute water. This is called
evaporation.
nitrogen-fixation.
infiltration.
eutrophication.
Most of the phosphorus cycle takes place
in the air.
in bacteria nodules on plant roots.
at or below ground level.
in a desert.
The reactants/starting molecules of photosynthesis are
CO2 and O2
CO2 and H2O
O2 and Sugars
Sugars and H2O
The products of photosynthesis, which are are the starting molecules of cell respiration are
CO2 and H2O
H2O and O2
O2 and Sugar
Sugar and CO2
The process that involves bacteria and fungi breaking down large compounds to return smaller molecules to the environment is called
nitrification.
decomposition.
erosion.
photosynthesis.
The hydrologic cycle is also known as the
nitrogen cycle.
water cycle.
carbon cycle.
phosphorus cycle.
Which of the following is not part of the carbon cycle?
burning of fossil fuels which release CO2 into the air
transpiration by plants
cell respiration by plants, animals and fungi
conversion of sunlight energy into chemical energy by photosynthesis
The process where bacteria that convert nitrogen gas into ammonia and nitrites & nitrates compounds is called
nitrogen fixation.
denitrification.
infiltration.
nodule formation.
Most nitrogen fixing bacteria live
inside the stomachs of cows.
in the atmosphere.
in soil and the roots of plants.
in animal intestines.
All of the nutrient cycles contain a pathway where molecules enter the atmosphere EXCEPT the
nitrogen cycle.
phosphorus cycle.
carbon cycle.
water cycle.
Plants convert CO2 in the air into carbohydrates and O2 gas during the process of
cell respiration.
decomposition.
photosynthesis.
fermentation.
Water falling to the earth from a cloud is
condensation.
precipitation.
evaporation.
infiltration.
Which of the following is least likely true of our atmosphere?
The atmosphere is over 75% a gas that only bacteria can convert into other compounds
Water vapor and carbon dioxide are greenhouse gases that help keep Earth warm
Carbon dioxide and oxygen gas exist in the atmosphere because of photosynthesis and respiration
The atmosphere is made of 70% oxygen, 25% nitrogen and less than 1% CO2 and water vapor
