WorksheetsWater Pollution
Total questions: 10
Worksheet time: 6mins
Based on the studies, which are the main sources of river pollution in Malaysia?
Residential wastes
Agricultural wastes
Industrial wastes
Biochemical oxygen demand (BOD) represents the amount of dissolved oxygen (DO) consumed by biological organisms when they decompose organic matter in water. Based on your Biology knowledge, the high value of BOD indicate ……
Good water quality and water not polluted
Bad water quality and water severely polluted
When pollutants enter the food chain, it is called
Microbial marine pollution
Microbial river pollution
Microbial water pollution
Microbial sewage pollution
Which of these bacteria causes typhoid fever?
Escherichia coli
Rotavirus gastroenteritis
Vibrio cholerae
Salmonella serotype
Which land activities can increase the source of pollution loads in the river?
Industries
Expansion of mining industry
High use of chemicals in agriculture
None of these
The Interim National Water Quality Standards (INWQS) defined six classes that referred to the classification of rivers. Which class is the best?
I
IV
V
The strategies and legislation of the Environment Quality Act (EQA), 1974 are:
(Choose 3)
Prevention of pollution
Abating of pollution
Restore of pollution
Controlling of pollution
Which is not the mode of control of the Environment Quality Act (EQA), 1974?
Discharging or emitting wastes exceeding acceptable conditions into the atmosphere
Discharging or depositing waste in the wrong place
Discharging or depositing any wastes or oil, in excess of acceptable conditions, into inland Malaysian waters
Polluting or causing the pollution of any soil or surface of any land
Why is water resource management is considered a great challenge even for the most country around the globe?
Limited resource
Monitoring global water demand
Population
What is the point and non-point source challenge in sustaining a safe drinking water experience by Malaysia?
Any pollutant or discharges from various industry
Pesticide and herbicide from agricultural activities
Size of natural water catchment
