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WorksheetsEnergy Flow and Ecosystem
Total questions: 17
Worksheet time: 29mins
Which is NOT a greenhouse gas?
methane
carbon monoxide
nitrous oxide
CFC's
Tamaraw or Mindoro dwarf buffalo is an animal found in Mindoro Island, Philippines. Since it is only found in one place, this organism is called (a) .
This habitat is widely dominated by pine trees and the soil is mostly covered with frost.
desert
rainforest
grassland
tundra
A farmer would like to rear cows with the best meat. Describe how he would do it. [2]
The sun transfers its energy to the leaves of a plant which in turn eaten by a caterpillar. The caterpillar will be eaten by a chicken which in turn eaten by a snake.
Make a food chain to show the flow of energy.
Define trophic level
Tick all options that lead to extinction of species
pollution
reforestration
poaching
selective breeding
cutting down trees
How much energy would be transferred to the third-level consumer from the 100% energy from the sun?
0.01%
0.1%
1%
10%
100%
Which of the following statements uses structural adaptation?
Humans sweat a lot during hot days to release heat.
Fishes have streamlined body for swimming.
Plants bend towards the sunlight.
Frogs breathe through their skin.
Phytoplankton is eaten by a zooplankton which in turn eaten by a small fish. This fish is eaten by a squid. Dolphin eats the squid. Which of the following is NOT correct?
Zooplankton is a herbivore.
Zooplankton is a predator.
Squid is acting as both prey and predator.
Dolphin receives the least energy.
Dolphin is the apex predator.
Which of the following is a nonrenewable energy resource?
geothermal
tidal
nuclear
solar
biofuels
Name the two gases that can cause acid rain. [2 marks]
Tick the option that can damage the ozone layer
burning fossil fuels
use of aerosols
cutting down trees or burning the forest
dumping toxic chemicals into the rivers and other bodies of water
earthquake and volcanic eruption
What does the arrow represent on the food chain above?
The diagram above represents a food web. Suggest what will happen if the number of grasshopper is decreased. [2marks]
Give one effect of global warming on the environment
