Environmental Science and Sustainability MCQs (Part-14)
What is the primary purpose of environmental laws?
A To promote waste production
B To protect the environment and public health
C To deplete natural resources
D To increase pollution
Environmental laws regulate activities that may harm the environment. They aim to prevent pollution, conserve natural resources, and ensure the long-term health and well-being of ecosystems and human populations.
Which of the following is an example of renewable energy?
A Wind energy
B Natural gas
C Oil
D Coal
Wind energy is renewable because it uses wind, a naturally replenishing resource, to generate power. It is clean and does not deplete over time, unlike fossil fuels such as coal and oil.
What is the main goal of sustainable development?
A Increasing resource consumption
B Meeting present needs without compromising future needs
C Ignoring social equity
D Economic growth only
Sustainable development focuses on balancing environmental, economic, and social needs to ensure that future generations can meet their own needs without over-exploiting them.
What is the effect of deforestation?
A Increased biodiversity
B More rainfall
C Habitat destruction and soil erosion
D Improved soil quality
Deforestation leads to the loss of habitats for many species and increases soil erosion, as tree roots that help hold soil together are removed. This disrupts ecosystems and degrades land quality.
What is a major impact of global warming?
A Increased frequency of natural disasters
B Cooling of global temperatures
C Decreased sea levels
D More stable weather patterns
Global warming contributes to more frequent and intense natural disasters, such as hurricanes, floods, droughts, and wildfires, due to changing weather patterns and rising global temperatures.
Which of the following is a key principle of eco-friendly construction?
A Using non-renewable materials
B High energy consumption
C Energy efficiency and sustainability
D Increased water usage
Eco-friendly construction aims to reduce environmental impact by using energy-efficient designs and sustainable materials. These buildings use fewer resources, reduce energy consumption, and minimize waste.
What is the main purpose of organic farming?
A To reduce labor costs
B To produce genetically modified organisms
C To avoid the use of synthetic fertilizers and pesticides
D To increase crop yield using chemicals
Organic farming avoids synthetic chemicals, using natural alternatives like crop rotation and composting. It aims to maintain soil health and reduce environmental impact while producing food sustainably.
What does the term “carbon footprint” measure?
A The size of a forest
B The amount of carbon in the atmosphere
C The weight of carbon
D The total emissions of greenhouse gases caused by human activities
A carbon footprint measures the total amount of carbon dioxide and other greenhouse gases emitted by activities such as transportation, food production, and energy consumption, which contribute to climate change.
Which of the following is an example of a clean energy source?
A Natural gas
B Petroleum
C Wind
D Coal
Wind energy is considered clean because it generates electricity without emitting harmful greenhouse gases or pollutants. It is a renewable source that helps mitigate climate change and environmental degradation.
What is the role of a circular economy?
A To deplete resources
B To use resources more efficiently and reduce waste
C To ignore recycling
D To increase waste production
A circular economy aims to reduce waste and conserve resources by reusing, recycling, and remanufacturing products. It creates a sustainable system where materials are continuously cycled back into the economy.
What is the main cause of soil erosion?
A Wind
B Deforestation
C Overgrazing
D All of the above
Soil erosion is caused by multiple factors, including wind, deforestation, and overgrazing. These activities remove vegetation, which helps anchor soil, making it more susceptible to being carried away by wind or water.
What is the primary purpose of waste recycling?
A To reduce environmental impact and conserve resources
B To pollute water bodies
C To increase energy consumption
D To increase landfill space
Recycling reduces waste by turning used materials into new products. It helps conserve natural resources, lowers energy consumption, and decreases pollution by minimizing the need for raw material extraction and processing.
What is a key principle of sustainable agriculture?
A Overuse of water
B Crop rotation and soil health
C Monoculture farming
D High chemical input
Sustainable agriculture emphasizes practices like crop rotation to preserve soil health, reduce the need for synthetic chemicals, and improve biodiversity, ensuring long-term productivity and minimal environmental harm.
What is the effect of using hazardous waste improperly?
A Increased biodiversity
B Pollution of air, water, and soil
C Decreased carbon emissions
D Improved ecosystem health
Improper disposal of hazardous waste, such as chemicals and industrial byproducts, can lead to pollution of the environment, including contamination of water sources, soil degradation, and air quality issues, harming human and ecological health.
What does “sustainable urban development” promote?
A Sprawling cities
B High energy consumption
C Public transportation and green spaces
D Pollution
Sustainable urban development focuses on creating cities that are efficient, with reduced energy consumption, the use of renewable energy, ample green spaces, and efficient public transportation to reduce pollution and improve quality of life.