WorksheetsBiogeochemical Cycles Test
Total questions: 50
Worksheet time: 25mins
What is water that flows in rivers and streams into the oceans and lakes?
evaporating
precipitating
condensing
runoff
What is A?
Evaporation
Precipitation
Condensation
Runoff
When tiny droplets of water form in the air its called-
precipitation
evaporation
condensation
water vapor
After condensation, the droplets of water in the clouds fall to the earth in different forms
precipitation
evaporation
condensation
water vapor
When water is heated in the ocean by the sun and turns into water vapor
condensation
transpiration
evaporation
runoff
Carbon dioxide, water, _____ are used in photosynthesis to produce oxygen and glucose (plant food).
AIr
Water
Sunlight
Glucose
A gas that is produced by plants during photosynthesis that animals use for respiration.
Carbon dioxide
Oxygen
Water vapor
Methane
What produces oxygen?
People and animals
All plants
Only green plants
All living organisms
The carbon dioxide-oxygen cycle is best defined as-
the process in which plants use energy from the sun to make their own food
living things
a green substance in plant leaves that captures energy from the sun
the movement of carbon dioxide and oxygen between organisms and the air
Burning fossil fuel has which effect in the carbon cycle?
It removes carbon dioxide from the atmosphere.
It adds carbon dioxide to the atmosphere.
It puts carbon dioxide under the ground.
It has no effect in the carbon cycle.
Animals use oxygen for _____________.
breathing
making glucose
creating food
transpiration
Plants use _____________ to make their own food during photosynthesis.
water
CO2
energy from the Sun
water, energy from Sun, CO2
What is the process of plants taking in carbon dioxide and releasing oxygen called?
Respiration
Photosynthesis
Produce
Breathing
A gas produced by animals during respiration that plants use for photosynthesis.
Methane
Oxygen
Carbon DIoxide
Water vapor
Animals obtain the nitrogen they need directly from the
soil in their habitat
plants they eat
air they breathe
bacteria living within them
When water vapor is cooled and forms droplets-
Condensation
Transpiration
Evaportation
Run-off
Precipitation occurs because
the droplets evaporate in the air
the droplets are too heavy for the air to hold
the droplets are too light for the air to hold
the droplets freeze in the air
When water turns into a gas
condensation
precipitation
evaporation
transpiration
What is B?
Evaporation
Precipitation
Condensation
Runoff
What is carbon dioxide used for?
plants use it to make their food
people and animals use it to breathe
it's used to make oxygen
it's used in baking cookies
This is released by the weathering of rocks.
Carbon
Phosphorus
Oxygen
Nitrogen
Which nutrient is not cycled through the atmosphere?
Carbon
Water
Oxygen
Phosphorus
What converts nitrogen into a useable form for plants and animals?
bacteria
rain
fungi
water
How do animals get nitrogen?
the atmosphere
bacteria
eating other organisms
lightning
When nitrogen gas is turned in to a form that plants and animals can use is called
Combustion
Decomposition
Photosynthesis
Nitrogen Fixation
Organisms that play a role in the nitrogen cycle
only bacteria
only plants
only animals
plants, animals, & bacteria
Using fossil fuels is safe for the environment.
True
False
In the carbon cycle, producers take in the gas __
Carbon dioxide
oxygen
nitrogen
carbon monoxide
How do living organisms return carbon to the atmosphere in the carbon cycle?
respiration and photosynthesis
decomposition and respiration
When humans burn fossil fuels, most of the carbon quickly enters the as carbon dioxide.
Water
Sun
Atmosphere
Air
In what process is Carbon transformed into chemical energy?
Photosynthesis
Respiration
Primary Production
Secondary Production
What is happening at 1?
respiration: releasing CO2
photosynthesis: absorbing CO2
decomposing CO2 in the soil
turning CO2 from the atmosphere into organic molecules
What is the role of decomposers in an Ecosystem?
They are burned and released as carbon dioxide
They recycle matter and nutrients to form fossil fuels
Decomposers are responsible to turn oxygen into carbon dioxide
Decomposers are responsible to turn oxygen into carbon dioxide
Organisms that need nitrogen to survive
only plants
only bacteria
only animals
all living organisms
Plants and animals need nitrogen to make __________.
Protein
Lipids
Carbohydrates
Nucleic Acids
Identify the cycle pictured
The Water cycle
The Nitrogen cycle
The Carbon cycle
The Phosphorus cycle
Identify the cycle pictured
The Water cycle
The Nitrogen cycle
The Carbon cycle
The Phosphorus cycle
Identify the cycle pictured
The Water cycle
The Nitrogen cycle
The Carbon cycle
The Phosphorus cycle
What role do decomposers play in the phosphorous cycle?
absorb phosphorous
return phosphorous into the soil
release phosphorous into the atmosphere
combustion
Building proteins and DNA is the reason organisms need what substance?
Water
Nitrogen
Carbon
Calcium
This is where the Carbon cycle and the Calvin cycle take place
Stroma
Stomata
Grana
Thylakoid
During photosynthesis, carbon dioxide is taken in from the atmosphere through this, and oxygen is released as a waste product
Stroma
Stomata
Grana
Thylakoid
These are stacks of thylakoids in the stroma of a chloroplast that contain important light-absorbing pigments, such as chlorophyll
Stroma
Stomata
Grana
Thylakoid
This is a membrane in chloroplasts and the site of light depended reactions of photosynthesis
Stroma
Stomata
Grana
Thylakoid
Cellular respiration takes place in this
Stroma
Stomata
Mitochondria
Thylakoid
Oats, peas, beans, and corn
Legumes
Eutrophication
Fertilizer
Decomposers
________________ occurs when fertilizer runoff causes excess algae and water weeds
Legumes
Eutrophication
Fertilizer
Decomposers
Helps plants to grow
Legumes
Eutrophication
Fertilizer
Decomposers
Bacteria that break down organic matter
Legumes
Eutrophication
Fertilizer
Decomposers
THe downward entry of water into the soil or rock surface.
Legumes
Infiltration
Fertilizer
Decomposers
