NEW
Font size
WorksheetsBiogeochemical Cycles Quiz
Total questions: 16
Worksheet time: 1hrs 20mins
Which biogeochemical cycle is occurring above?
Carbon cycle
Water cycle
Rock Cycle
The process by which some organisms make energy. CO2 is released as a byproduct.
cellular respiration
photosynthesis
transpiration
evaporation
Plants use ____ to build organic molecules during _____.
CO2; photosynthesis
O2; photosynthesis
CO2; respiration
O2; respiration
Which type of organism performs nitrogen fixation?
Bacteria
Viruses
Humans
Plants and phytoplankton
Most of the phosphorus in the biosphere is stored in ____
clouds
atmosphere
rocks
ocean
Examples of decomposers include:
humans, dogs, and whales
trees, tomato plants, and phytoplankton
viruses
fungi, worms, and bacteria
Photosynthesizing plants affect the carbon cycle by...
Creating more carbon atoms
Reducing the amount of carbon in the soil
Absorbing CO2 from the atmosphere, lowering atmospheric levels of carbon
None of the above; plants do not affect the carbon cycle
True/False. Phosphorus can be found in the atmosphere.
true
false
Which element can be returned to the soil during electrical storms?
Carbon
Nitrogen
Sulfur
How do consumers get energy?
by running fast
by drinking water
by sleeping
by eating other organisms
Who is the producer?
lettuce
greenfly
ladybird
thrush
Which is true of denitrification?
It converts ammonia to nitrates
It can occur due to lightning
It converts nitrates to nitrogen gas
It benefits the plant
In a dead zone, _________ levels are really low such that living organisms are not able survive.
nitrogen
oxygen
fertilizer
carbon dioxide
An increase in the amount of nutrients in a lake is known as
calcification
cellular respiration
eutrophication
photosynthesis
True or false: Carbon cycles through living and nonliving things on Earth.
True
False
Most of the nitrogen on Earth is located in the
geosphere
hydrosphere
atmosphere
biosphere
