WorksheetsEnergy in the Ecosystem
Total questions: 22
Worksheet time: 11mins
An ecosystem refers to all the living things in a given area.
True
False
Which of the following is NOT like the others?
cloud
sun
grass
lake
Earth's major source of energy
the oceans
the Sun
wind systems
organisms
Which of the following does NOT affect climate?
temperature
organisms
moisture
atmosphere
the mixture of gases surrounding the Earth
atmosphere
climate
oceans
The humus is the ______ part of the soil.
biotic
abiotic
The total mass of the substances remains the same after a chemical reaction.
True
False
release of water vapor from the leaves and stems of plants
evaporation
transpiration
condensation
precipitation
forms clouds
evaporation
transpiration
condensation
precipitation
process that changes atmospheric nitrogen into nitrogen compounds that are usable by living things
nitrification
nitrogen fixation
denitrification
Which organism converts nitrogen in the air into more usable forms?
plants
bacteria
animals
fungi
Which cycle does NOT involve the process of decomposition?
water cycle
nitrogen cycle
carbon cycle
Which process releases oxygen into the atmosphere?
photosynthesis
cellular respiration
Which of the following is NOT a greenhouse gas?
water vapor
carbon dioxide
oxygen
methane
Matter and energy are cycled in the ecosystem.
True
False
Which organisms perform photosynthesis or chemosynthesis?
producer
consumer
photosynthesis : _______ :: chemosynthesis : chemical energy
thermal energy
electric energy
light energy
What is the product of photosynthesis?
carbon dioxide
water
glucose
light
simplest model of energy transfer
food chain
food web
In an energy pyramid, which consumer obtains the greatest amount of energy?
herbivore
carnivore
decomposer
In an energy pyramid, how much is transferred to the next level?
100%
50%
10%
In an energy pyramid, the bottom level is occupied by the ______.
herbivore
carnivore
decomposer
producer
