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WorksheetsAir and Water Pollution
Total questions: 60
Worksheet time: 47mins
The "brown haze" often seen over urban areas is mainly composed of:
Which of the following is a primary source of anthropogenic air pollution?
Volcanic eruptions
Wildfires
Industrial emissions
Forest decomposition
Bioaccumulation occurs when:
Pollutants become more concentrated in organisms as they move up the food chain
Pollutants are diluted in water
Pollutants are rapidly broken down by bacteria
Pollutants evaporate into the atmosphere
What is the "critical" level of DO, meaning most aquatic organisms become stressed and die below this amount?
0 mg/l
5 mg/l
10 mg/l
50 mg/l
As the organic waste input in a water body increases,
BOD increases
BOD decreases
BOD may increase or decrease
Cannot be said with surety
Which of the following is not a renewable energy source?
wind
wave
coal
solar
The three areas of sustainability are
Physical, Economical, Political
Environmental, Social, Physical
Economical, Environmental, Social
Physical, Political, Social
Abiotic is non-living
The main idea of sustainability is to act responsibly so that the resources on the planet will be able to _____________many generations to come.
feed
wipe out
support
clothe
Name a place that carries out a conservation activity: ex situ:
The Lost World Petting Zoo
The Farm in the City
Botanical Garden
Sepilok Rehabilitation Centre
Steps to save electric in the office:
Turn off the lamps when not in use.
Use energy-efficient equipment.
Set the brightness of computer screen to a suitable brightness.
Use regular batteries for wireless telephone and remote control, rather than using rechargeable batteries
Use fluorescent lamps rather than LED lamps.
What are the effect of global warming on the environment caused by widespread logging?
I and II
I and III
II and IV
III and IV
Lichen was sensitive to air pollution. Therefore, their growth is often used as indicator for an air pollution. Diagram below shows a graph on the relationship between the number of lichen colonies against the distance from a town centre.
What is the conclusion of the study based on the above graph?
The further from the town centre, the number of lichen colonies decreases
The further from the town centre, the number of lichen colonies increases
Many types of lichens grow near the town centre
There is only one type of lichen that grows far from the town centre.
Which of the following human activities threatens the ecosystem?
I forest conservation
II forest exploration
III rapid increases in human population
IV management of planned development
I and II
II and III
III and IV
I and IV
Which of the following activities can increase the level of carbon dioxide in the atmosphere?
I oil spills at sea
II burning of fossil fuels
III harvest of aquatic plants and algae massively for commercial purposes
IV Excessive use of fertilisers
I and II
II and III
III and IV
I and IV
Which of the following causes eutrophication
Pesticide
Herbicide
Fertiliser
Carbon dioxide
The combustion of fossil fuel releases sulphur dioxide. How does sulphur dioxide fall to earth as acid rain?
Combined with carbon dioxide
Combined with water vapour
Combined with oxygen
Combined with dilute acid
Materials and energy in nature that are essential or useful to humans.
Natural resources
Natural services
Natural capital
None of the above
Which of the following compounds is not needed for the process of photosynthesis
C6H12O6
H2O
CO2
All of the above
It is defined as a group of individuals of the same species living in a particular place.
Organism
Population
Community
Ecosystem
An ecosystem that is not sustainable can break down when a natural disaster occurs. This can lead to organisms in the ecosystem either leaving the area or dying off.
Increased biodiversity results in a more sustainable ecosystem because -
A greater number of plant species means that there is less barren land
A greater variety of species present allows more organisms to adapt after changes occur
The transition area between two ecosystems is narrower.
There are fewer species to be affected by environmental stresses
Tropical rainforests have the greatest biodiversity of any type of land ecosystem. How does biodiversity contribute to the sustainability of an ecosystem?
The presence of more species with different adaptations makes it more likely that some organisms will survive an ecological disaster.
Greater genetic variation within species makes it more likely that some individuals will survive a disease outbreak.
The presence of a variety of herbivore species that can feed on a large number of different producer species helps ensure abundant prey for predators in the ecosystem.
All of the above.
What would the Earth be like without any greenhouse effect?
frozen and lifeless
extremely hot
same as now
slightly cooler than now
Why does the level of CO2 increase in the atmosphere?
because of industry and vehicles
because of increased infrared radiation
because of increased ultraviolet radiation
because of the extinction of species
Which is NOT a part of an area's overall biodiversity?
Ecosystem Biodiversity
Genetic Biodiversity
Evolution Biodiversity
Species Biodiversity
Describes differences in DNA among individuals of a population or species.
Subspecies
Genetic Isolation
Species Diversity
Genetic Diversity
Which of the following statements are true about latitudinal gradient?
Species diversity decreases as we move away from the equator towards poles.
Species diversity is more in temperate latitude, than, other latitudes.
Species diversity is more in poles than in equator.
The term Biodiversity hotspots mean _________
Regions with high levels of species richness and endemism.
Regions with hot thermal springs and rivers
Spots on one species of frog, that makes our skin burn if touched.
Biodiversity loss occurs due to –
A. Habitat loss and fragmentation
B. Co-extinction
C. over-exploitation
D. Alien species invasion.
A, B
A, B, C
B, C, D
A, B, C, D
In any food web, the organisms that are responsible for converting raw energy into usable chemical energy are collectively called ________ while organisms that recycle the nutrients trapped in dead organisms are collectively called ________.
producers;consumers
producers; decomposers
heterotrophs; consumers
heterotrophs;autotrophs
In a small village, there are some residents who rely on the local grocery store for all their food needs. These residents cannot produce their own nutrients and depend on the store for nutrition. What are these residents called?
Autotrophs
Heterotrophs
Consumer
Producer
Coral reefs are endangered by
climate change
overfishing
pollution
all of the above
What causes coral bleaching?
oil spills
warmer water temperatures
overfishing
red tide
What is the largest coral reef on the planet?
Rainbow Reef, Fiji
Great Chago Archipelago, Indian Ocean
Amazon Reef, Brazil
Great Barrier Reef, Australia
What is the water footprint?
water for cellular processes
water required by our body
water quantity required to produce goods & services
water for travel
True or False? When you save energy, you also save water because power plants use a lot of water to produce electricity.
True
False
(a) use refers to the water used to produce the goods and services others need and enjoy
What does the whole right side of the population pyramid represent?
Males
Females
Young people
What age group does the top of the population pyramid represent?
The working people
The rich people
The elderly
The young people
According to the population pyramid of this country, its population is most likely...
growing slowly.
growing rapidly.
decreasing.
not changing.
According the population pyramid Canada's population is _______________
growing
getting smaller
staying the same
