general knowledge Online Quiz - 4759

Groundwater contamination in Delhi has been found with high levels of nitrate and fluoride, which are not removed by ordinary water filters. Nitrates come from sewage and agricultural runoff, while fluoride occurs naturally but reaches harmful concentrations from over-extraction. Mercury, zinc, and arsenic are toxic contaminants but not the primary concern identified in this specific Delhi groundwater survey.

Water harvesting refers to collecting and storing rainwater, either in storage tanks for direct use or directing it into the ground to recharge groundwater aquifers. This is a sustainable practice to address water scarcity. It does not involve harvesting from rivers (which would be surface water extraction) or tubewells (which extract groundwater rather than recharge it).

Agriculture is the single-largest consumer of fresh water in India, accounting for approximately 80-85% of total water withdrawals. This is primarily due to irrigation needs for crops. While industry, power generation, and domestic use are significant consumers, their combined usage is far less than agricultural demand. This pattern is typical of most agrarian economies.

The Caspian Sea, the largest inland body of water in the world, has experienced rapidly rising water levels in recent years. This has created threats to coastal cities, railways, and infrastructure, requiring protective measures. The Black Sea, Mediterranean Sea, and Arabian Sea are not experiencing the same rapid level-rise phenomenon as the Caspian.

This question appears to be asking about the female lead paired with Unni Krishnan, a Tamil film playback singer. Unni Krishnan has sung numerous songs for actress Priya (likely referring to a specific film or actress). Without the complete question context, this requires knowledge of Tamil cinema singer-actress pairings.

Industrial wastewater discharge increased dramatically from 1947 to 1997 due to rapid industrialization and economic growth globally. The 43-fold increase reflects the massive expansion of manufacturing and processing industries during this post-WWII period, particularly in developing nations.

Both green manure (decomposing plant material turned into soil) and biofertilizers (microbial inoculants that enhance nutrient availability) are biological materials used to maintain and improve soil fertility. Bioinsecticides control pests but do not directly enhance soil fertility.

These lyrics are from the Tamil film 'Kaadhal' (Love). The fragment expresses romantic devotion and sacrifice themes common in Tamil cinema music. The song is from the 2004 film directed by Balaji Sakthivel.

This fragment appears to be from the Tamil film 'Jeans.' The garbled text suggests it is a poorly transcribed lyric or dialogue from the 1998 film starring Prashanth and Aishwarya Rai.

This poetic fragment with imagery of moon, sky, rain, and poetry appears to be from the Tamil film 'Pokkisham.' The lyrical quality suggests a romantic song typical of Tamil cinema soundtracks.

This question asks which Tamil film featured both actors Delhi Kumar and Pasupathi in its cast. 'Kannathil Muthamittal' (2002), directed by Mani Ratnam, is the claimed correct answer indicating both actors appeared in this critically acclaimed film about the Sri Lankan civil war.

The definition describes 'ex-situ conservation' - conservation of ecosystems and habitats outside their natural locations, like zoos, botanical gardens, and seed banks. In-situ conservation (option B) means protecting species within their natural habitats (like national parks). The description matches ex-situ.

Project Tiger was launched in 1973 to conserve India's tiger population and protect habitat. It established tiger reserves across the country and became one of the world's most successful wildlife conservation programs. India now has over 50 tiger reserves.

The Olive Ridley turtle (Lepidochelys olivacea) is the most populous sea turtle species in Indian waters. India hosts the world's largest mass nesting sites for this species at Odisha's Gahirmatha, Rushikulya, and Devi River mouths. Key themes include arribada (mass nesting), conservation status, and Indian Ocean marine biodiversity.

The Giant Panda (Ailuropoda melanoleuca) is endemic to central China, specifically Sichuan, Shaanxi, and Gansu provinces. Its habitat restricted to bamboo forests makes it a conservation icon. The WWF adopted this black-and-white bear as its logo in 1961, chosen for its universal appeal and endangered status.

The Gir National Park and Wildlife Sanctuary in Gujarat was established in 1965 specifically to protect the Asiatic lion (Panthera leo persica), which is restricted to this single habitat. Gir Forest is the last remaining refuge of the Asiatic lion subspecies, making it crucial for conservation. Tigers live in reserves like Ranthambore; leopards are widespread across India.