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WorksheetsIBDP ESS 2.3 Flows of Energy and Matter
Total questions: 12
Worksheet time: 4mins
What is not a possible source of energy for food chains?
Methane lakes in the deep ocean
The Sun
Producers
Outflows of mineral rich water from hydrothermal vents
What fraction of incoming solar radiation reaches the earth's surface?
1/4
1/2
3/4
1
What process decreases the amount of energy reaching the Earth's surface?
reradiation
reflection
respiration
absorption
Pathways of energy through an ecosystem include all except...
Photosynthesis
Respiration
Assimilation
Denigration
The conversion of energy into biomass through time is called all of these options except...
Respiration
Photosynthesis
Productivity
Assimilation
NPP =
GPP+R
GNP-R
GPP-R
GSP-R
GSP=
NSP-R
Food eaten+fecal loss
Fecal loss- foodeaten
Food eaten-fecal loss
The maximum sustainable yield for a system =
The highest yield per unit time
The average yield per unit time
The highest yield per unit time that can be sustained indefiinitely
The average yield per unit time that can be sustained indefiinitely
A change of location in an ecosystem is called a
Flow
Transfer
Transformation
Change of state
The Carbon cycle is an example of a/an...
Open System
Closed System
Isolated System
Positive Feedback
The form of nitrogen that can be utilised directly by plants is called...
Nitrogen
Ammonia
Nitrite
Nitrate
Human impacts on mineral cycles include all except...
The fossilisation process
Combustion of fossil fules
The pouring of concrete
Application of chemical fertiliser
