Environmental Chemistry - SS1 Chemistry Past Questions and Answers - page 4
Which of the following is a method of point source pollution control?
Constructing wetlands
Improving agricultural practices
Reducing plastic waste
Implementing wastewater treatment plants
Which of the following is an indicator of water quality used to assess pollution levels?
pH level
Air temperature
Noise level
Soil moisture
Define water pollution and suggest possible solutions to mitigate water pollution.
Water pollution refers to the contamination of water bodies, such as rivers, lakes, oceans, and groundwater, with harmful substances or pollutants. It is a significant environmental issue that poses threats to aquatic ecosystems and human well-being.
To mitigate water pollution, several measures can be taken:
- Improve wastewater treatment: Implementing effective wastewater treatment systems can remove pollutants from domestic and industrial sources before they are discharged into water bodies.
- Implement agricultural best practices: Encouraging sustainable farming methods, responsible use of fertilisers and pesticides, and proper management of animal waste can help reduce agricultural runoff and water pollution.
- Promote industrial regulations: Enforcing strict environmental regulations on industries and promoting cleaner production practices can minimise the release of pollutants into water bodies.
- Enhance monitoring and enforcement: Regular monitoring of water quality, strict enforcement of pollution control measures, and penalties for non-compliance can deter water pollution.
- Raise awareness and education: Educating the public about the importance of clean water, promoting water conservation, and encouraging responsible waste disposal can contribute to reducing water pollution.
What is the primary goal of Green Chemistry?
Maximising chemical production
Minimising the use of chemicals
Eliminating all chemical processes
Balancing the economic and environmental aspects of chemistry
Which of the following is NOT a principle of Green Chemistry?
Atom economy
Renewable energy use
Pollution prevention
Safer solvents and auxiliaries
Which of the following is an example of a sustainable practice?
Using disposable plastic cups
Increasing energy consumption
Recycling paper and plastic waste
Disposing of hazardous chemicals in landfills
What is the concept of "cradle-to-cradle" design in sustainability?
Maximising resource extraction
Minimising waste generation
Disposing of products in landfills
Encouraging planned obsolescence
Which of the following is an example of a sustainable solvent in Green Chemistry?
Chloroform
Benzene
Water
Toluene
What is the purpose of life cycle assessment (LCA) in sustainable practices?
Identifying environmental impacts throughout a product's life cycle
Promoting rapid product obsolescence
Disregarding the environmental impacts of products
Minimising waste during the production process
Which of the following is NOT an environmental benefit of sustainable agriculture?
Preservation of soil quality
Reduced use of synthetic fertilisers
Decreased biodiversity
Conservation of water resources