Environment – Easy Level – GK Questions

PV technology uses semiconductor materials to generate electric current from photons, offering clean, decentralized energy with minimal maintenance.

Rotating crops with different nutrient needs and growth habits enhances soil structure, reduces disease buildup, and optimizes resource use.

Biofertilizers containing beneficial microbes improve soil fertility naturally, reducing dependence on chemical fertilizers and promoting sustainable agriculture.

IPM emphasizes prevention, monitoring, and targeted interventions, reducing reliance on broad-spectrum pesticides and protecting beneficial organisms.

UV radiation in the stratosphere cleaves CFCs, releasing chlorine radicals that catalytically destroy ozone molecules, depleting the ozone layer.

These treatment methods convert dissolved metals into insoluble forms or bind them to media for removal, preventing aquatic toxicity.

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.

Urban wetlands act as natural sponges, absorbing excess rainwater, filtering pollutants, and providing habitat for diverse species.

Urban noise pollution from vehicles, machinery, and events can cause health issues like stress, sleep disturbance, and hearing impairment.

Concrete, asphalt, and reduced vegetation absorb and re-emit heat, while waste heat from vehicles and buildings elevates urban temperatures.

Initiated by WWF, Earth Hour symbolizes collective commitment to environmental action and sparks conversations about sustainability beyond the event.

Adopting the 3Rs minimizes waste generation, conserves resources, and reduces pollution, contributing to sustainable consumption patterns.

Established by the UN in 1973, World Environment Day mobilizes action through campaigns, events, and policy advocacy worldwide.

The three pillars of sustainability—economic, social, and environmental—must be integrated to meet present needs without compromising future generations.

Coal is a fossil fuel formed over millions of years; its extraction and use deplete finite reserves, classifying it as non-renewable.

Green GDP adjusts conventional GDP by subtracting the costs of environmental damage and resource depletion, promoting sustainable development metrics.

Citizen science engages volunteers in scientific research, expanding data collection capacity and raising environmental awareness among communities.

Water quality monitoring assesses physical, chemical, and biological parameters to evaluate pollution levels and ecosystem health.

Remote sensing uses sensors to detect and record reflected or emitted energy, enabling large-scale environmental monitoring without physical contact.

Launched under NAPCC, the Green India Mission targets enhancing forest cover, biodiversity, and livelihoods of forest-dependent communities.