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Generate QuizEnvironment – True/False – GK Questions
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Eutrophication of water bodies is often caused by excess nutrients like nitrogen and phosphorus from agricultural runoff.
- True
- False
Answer: True
Nutrient enrichment triggers algal blooms; subsequent decomposition depletes dissolved oxygen, causing fish kills and ecosystem imbalance.
pH is a measure of the acidity or alkalinity of a solution, with 7 being neutral.
- True
- False
Answer: True
pH scale ranges from 0 (highly acidic) to 14 (highly alkaline); most natural waters have pH between 6.5 and 8.5, suitable for aquatic life.
Preserving urban wetlands helps in flood control, groundwater recharge, and biodiversity conservation.
- True
- False
Answer: True
Urban wetlands act as natural sponges, absorbing excess rainwater, filtering pollutants, and providing habitat for diverse species.
Green roofs and vertical gardens in urban areas can help mitigate heat island effect and improve air quality.
- True
- False
Answer: True
Vegetated building surfaces provide insulation, absorb CO2, filter pollutants, reduce stormwater runoff, and enhance urban biodiversity.
Urban heat island effect refers to higher temperatures in cities compared to surrounding rural areas due to human activities and built surfaces.
- True
- False
Answer: True
Concrete, asphalt, and reduced vegetation absorb and re-emit heat, while waste heat from vehicles and buildings elevates urban temperatures.
Earth Hour, observed globally by switching off lights for one hour, aims to raise awareness about climate change.
- True
- False
Answer: True
Initiated by WWF, Earth Hour symbolizes collective commitment to environmental action and sparks conversations about sustainability beyond the event.
Mass media campaigns can effectively raise public awareness and influence pro-environmental behaviors.
- True
- False
Answer: True
Strategic communication through TV, radio, social media, and print can disseminate information, shape attitudes, and motivate collective action for sustainability.
World Environment Day is celebrated annually on June 5 to raise global awareness about environmental issues.
- True
- False
Answer: True
Established by the UN in 1973, World Environment Day mobilizes action through campaigns, events, and policy advocacy worldwide.
Sustainable development seeks to balance economic growth, social inclusion, and environmental protection.
- True
- False
Answer: True
The three pillars of sustainability—economic, social, and environmental—must be integrated to meet present needs without compromising future generations.
The 'Tragedy of the Commons' describes a situation where individuals acting in self-interest deplete a shared resource, harming collective welfare.
- True
- False
Answer: True
This concept, illustrated by overgrazing of common land, highlights the need for collective action, property rights, or regulation to manage common-pool resources.
The 'Green GDP' concept attempts to account for environmental degradation and resource depletion in national income accounting.
- True
- False
Answer: True
Green GDP adjusts conventional GDP by subtracting the costs of environmental damage and resource depletion, promoting sustainable development metrics.
Citizen science initiatives involve the public in collecting environmental data, such as bird counts or water quality testing.
- True
- False
Answer: True
Citizen science engages volunteers in scientific research, expanding data collection capacity and raising environmental awareness among communities.
Geographic Information Systems (GIS) can be used to map and analyze spatial patterns of environmental pollution.
- True
- False
Answer: True
GIS integrates spatial data with attribute information, enabling visualization, analysis, and decision-making for environmental management and planning.
Remote sensing involves collecting information about an object or area from a distance, typically using satellites or aircraft.
- True
- False
Answer: True
Remote sensing uses sensors to detect and record reflected or emitted energy, enabling large-scale environmental monitoring without physical contact.
The 'Green India Mission' aims to increase forest/tree cover and improve ecosystem services.
- True
- False
Answer: True
Launched under NAPCC, the Green India Mission targets enhancing forest cover, biodiversity, and livelihoods of forest-dependent communities.
The concept of 'Joint Forest Management' (JFM) in India involves local communities in forest protection and management.
- True
- False
Answer: True
JFM, initiated in 1990, partners forest departments with village communities for sustainable forest management and sharing of benefits.
Social forestry involves planting trees on community and private lands to meet local needs.
- True
- False
Answer: True
Social forestry promotes tree planting by communities for fuel, fodder, timber, and environmental benefits, reducing pressure on natural forests.
Greenhouse gases trap heat by absorbing and re-emitting infrared radiation.
- True
- False
Answer: True
Greenhouse gases like CO2, CH4, and water vapor absorb outgoing infrared radiation from Earth's surface and re-emit it, warming the atmosphere.
Temperature increases with altitude in the stratosphere due to absorption of UV radiation by ozone.
- True
- False
Answer: True
Ozone molecules absorb ultraviolet radiation, converting it to heat, which causes temperature to rise with altitude in the stratosphere.
The troposphere is the lowest layer of the atmosphere where most weather phenomena occur.
- True
- False
Answer: True
The troposphere extends from Earth's surface to about 8-15 km and contains about 75% of the atmosphere's mass, where clouds, rain, and winds form.