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Does India have the longest railway platform in the whole world?

Shree Siddharoodha Swamiji Hubballi Junction, also known as SSS Hubballi Junction, of Karnataka is the longest railway platform. The platform number 1 of Hubballi Junction has a length of 1,505 metres, thus becoming the longest railway platform of the world as of March 2021. The earlier record of being the longest platform was held by the Gorakhpur Railway Station (1366 metres), but with the extension of the Hubballi railway station to include a new platform, it holds that position now.

Hubballi Junction is a premier centre for public and commercial transportation in Karnataka. It is connected to Mumbai (460 kilometres) to its northwest, to Goa (160 kilometres) to the west, to Bengaluru (410 kilometres) to the south, and to Hyderabad (450 kilometres) to the east. It is one of the busiest railway stations in Karnataka after Bengaluru City.

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Which is the longest constructed waterway?

The longest waterway that has ever been constructed is located in China, and connects Hang-zhou in Zhejiang province with Beijing. The Grand Canal, also called Jing-Hang Yunhe, is not a single waterway but a series of waterways with length of around 1776 km. Successive Chinese regimes used this waterway to transport surplus grains from the agriculturally rich Yangtze (Chang) and Huai river valleys to feed the capital cities and the large armies in northern China. This structure is now considered as a UNESCO World Heritage site.

The part of the canal that was originally on the Huang He (Yellow River) is the oldest part of this waterway. It was traditionally known as the Shanyang Canal but it is now called the Southern Grand Canal (Nan Yunhe) and is located between the Yangtze and the city of Huaiyin (formerly called Qingjiang) in Jiangsu province. It reaches its maximum height of 42 metres in the mountains of Shan-dong.

This system of canals has led to faster trading between different provinces and has supported China’s economy. The part of the canal in the south of the Yellow River continues to be extensively used by barges carrying bulk materials and containers.

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Why is Andes called the longest mountain range?

The Andes mountain range extends from north to south through seven South American countries and is 8900 kilometres long and about 200 to 700 kilometres wide. It is spread across Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina with an average height of 4000 metres. In fact, the Andes range has some of the tallest peaks in the world. The only mountains that are taller than the Andes are the Himalayan Mountains and their adjacent ranges like the Hindu Kush. The highest elevation in the Andes range is for Mount Aconcagua in Argentina. It is 6,962 metres above sea level. The average elevation along the range is about 3,962 metres.

The world’s highest volcano, Ojos del Salado, when measured above sea level, is part of the Andes. It is located on the Chile-Argentina border. This vast mountain range is also home to a number of cities including Huaraz and Cuzco in Peru; Quito in Ecuador; La Paz of Bolivia; Bogota and Medellin in Colombia; and Pucon and Puerto Natales in Chile.

Animals in the Andes have to be very rugged and agile. They have to keep themselves warm in order to survive the harsh climate of the region. Chinchillas are one of the popular animals of this region. Their fur gets thicker in the higher altitudes as it gets colder and their ability to jump and climb serves as a protection from predators. Llamas, alpacas and the Andean condor, which is the largest vulture in South America, are some other wild animals to be found here. The Andes is also home to a wide variety of plant population; it nurtures about 30,000 species of plants.

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Which is the largest art museum in the world?

The Louvre, Paris is not only the largest art museum in the world, but it is also the world’s most renowned one. More than 8 million visitors come to Louvre each year. With the French monarch’s art collection and the collections that came in as a result of Napoleon’s Empire, the Louvre Museum opened in 1793. The Louvre Palace was a fortress during the twelfth century and has witnessed a lot of changes and renovations over the centuries. The palace was the residence of King Charles V and Philippe II along with their ever-growing art collections before it was turned into a museum. After the Royal Family moved to Versailles, the building that covers a total area of 160,000 square metres was converted into one of the prominent museums in the world.

The museum’s main entrance is a glass pyramid, which was made in the palace’s main courtyard in 1989. This structure changed the monotony of its exterior. The permanent collection of the museum has nearly 300,000 works of art that are dated before 1948. Of those, only 35,000 are exposed to the public.

Some of the most iconic and famous paintings on display are: The Mona Lisa by Leonardo da Vinci, Liberty Leading the People by Eugène Delacroix, and The Wedding at Cana by Paolo Veronese.

The most important sculptures in Louvre include Venus de Milo, an ancient Greek statue, and Seated Scribe, an ancient Egyptian sculpture.

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What are the specialities of the Great Barrier Reef?

The Great Barrier Reef covers an area of 348,000 square kilometres, and is the longest and largest reef complex of the planet. In fact, this remarkable site is one of the seven wonders of the natural world. Located on the north-east coast of Australia, the Great Barrier Reef is home to a huge diversity of species and habitats. This ecosystem is intricately interconnected, making it one of the richest and most complex natural ecosystems on earth.

It is home to over 1,500 species of fish, 400 species of corals, and 4,000 species of molluscs. It also hosts 240 species of birds along with a number of sponges, anemones, marine worms, crustaceans, and other species. This giant marvel is also home to many endemic and threatened species listed by the International Union for Conservation of Nature (IUCN). These features make it a very popular tourist destination and thus contribute to the economic development of the country.

In order to safeguard and preserve the reef, it was declared as the Great Barrier Reef Marine Park in 1975, and the supervision of the park was handed over to the authorities of the Marine Park.

Owing to its significance in the ocean ecosystem, the Great Barrier Reef was added to UNESCO’s World Heritage List.

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What causes negative human-wildlife interactions?

Recently, a tiger was shot dead in Bihars Champaran region, after it is said to have claimed the lives of at least nine people. Such instances of negative human-wildlife interactions are neither rare not new. In fact, they are increasing, and at an alarming rate. But, what triggers it? Is there a way to effectively manage this global concern? Let’s find out.

While several reasons can be attributed to such interactions, at the heart of the problem lies human population growth. Our planet has only a finite space to be occupied or used by a growing number of humans. So, forests are constantly cleared to either house us, grow our food, or build factories to meet our lifestyle demands. Which leaves wildlife with lesser and lesser space to live. In addition, we also come up with development projects – such as building bridges or laying railway lines- that cut through natural wildlife habitats. Whatever little space they have is further fragmented, causing animals to come into close contact with humans, an extremely uncomfortable situation for both sides. Apart from this, climate change-related consequences such as floods, draught, wildfires, etc. too displace wildlife, pushing them into human habitations in search of food, water, and shelter. Curious and careless tourists venturing too close for wildlife comfort or feeding them bring about negative interactions when there exists none.

How do they affect wildlife?

The worst outcome of negative interactions is the death of the animal. The death can happen unintentionally (knocked down by vehicles) or the animal can be killed as a matter of precaution as in the case of the Bihar tiger killing or as an act of revenge by angry humans. When forest areas shrink, it gives poachers and hunters that much more access to wildlife, increasing the number of animal lives lost. If animals are injured severely, they may perish without treatment. If such animals are parents to young ones, the offspring could die too-one injury eroding an entire generation of wildlife. All these could mean the eventual loss of the species as a whole. When key species disappear, they have the potential to trigger an entire ecosystem collapse.

How do they affect humans?

As with wildlife, negative interactions could be fatal for humans too. Even in cases where it is not fatal, it can be negatively life-changing. Injuries can lead to temporary or permanent disability. In some cases, this can mean the loss of livelihood or job. In addition, the survivors might grapple with monetary deficit to foot medical bills for their treatment. Among those who both lose their jobs and tackle mounting medical bills, the pressure could spill over to the rest of the family, where young people are forced to quit their education and find a job to support the family-spelling an end to their dreams. Not in all instances are humans affected directly. Large predators could kill or injure livestock, hungry elephants could damage houses and plunder crops, etc. For a family dependent on livestock and crops for income, this could mean monetary loss, apart from a life of constant fear and the inability to leave whatever property they own. Living in a region teeming with predators could hamper the mobility of inhabitants, including children for whom it may not be safe to play outside after sunset or travel between home and school through dense forests.

How can they be handled?

One of the significant ways to avoid or tackle such interactions is to look for beneficial co-existence. Invariably, humans caught in this issue are economically weak. So, when there’s loss of human or livestock life or injury, or damage of property, fair compensation to those affected may go a long way in stopping revenge killing. Regular awareness campaigns on the vital role of wildlife in this world and the need to protect them, especially endangered ones, can result in community-led conservation initiatives. Further, crops can be raised to serve as a buffer where human habitation exists on forest fringes. Technology – such as warning systems, sirens, lights, etc. to keep off animals without harm- can be put to good use. It is equally important to create clear boundaries of protected areas and have strict laws in place to prevent infrastructure development, encroachment, poaching, and hunting. More than anything, it is crucial to understand that since the nature of each issue is different, the solutions should be too.

A WIN-WIN SOLUTION

For more than two decades, Ladakh-based Snow Leopard Conservancy India Trust, as the name suggests, has worked holistically towards protecting the species, its prey, and habitat. As part of this effort, it has been conducting research too. But one of its most significant initiatives is the community-based conservation.

Decades ago, when snow leopards in the region ventured into human habitation and helped themselves to livestock, an important source of income/sustenance for the villagers, some carnivores had lost their lives to revenge killing by angry humans. The Trust understood that it was important for the locals to be part of the big cat protection efforts because both humans and the wildlife shared the resources available in the region. So, the Trust helped convert many village homes to homestays that promised eager tourists a chance at spotting the elusive animal. Soon, the villagers realised a snow leopard alive was worth more than one that’s dead! Today, they are active participants in the conservation programmes.

The Trust also educates adults and children on the rich biodiversity of the region, its significance, and the need to protect them, making it one of the most heart-warming conservation stories.

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What is coral bleaching?

Human factors like global warming, pollution and sedimentation contribute to the destruction of coral reefs, which are referred to as ‘the rainforests of the sea’.

A coral organism or coral polyp is a small, soft-bodied marine organism. It is a marine invertebrate (i.e. it lacks a backbone). A community of coral organisms or coral polyps is known as a coral reef.

Coral reefs host billions of zooxanthellae algae, which are very colourful. The colour of the coral reef depends on the colour of the zooxanthellae algae. Coral polyps are actually translucent. Corals have a symbiotic relationship with zooxanthellae. They derive most of their nutrients from the by-products of the algae’s photosynthesis. Human factors like global warming, pollution and sedimentation contribute to the destruction of coral reefs. If there is temperature change or pollution, the corals experience stress, causing them to evict the zooxanthellae algae. This, in turn, causes coral bleaching, since it is the algae which give corals their characteristic bright hues. When corals lose the algae, they will also lose most of their nutrients, causing them to die eventually. If the stress is mitigated then the process of coral bleaching is reversed, and the corals survive.

Coral reefs are referred to as ‘the rainforests of the sea. They cover less than one percent of the ocean floor, but support around 25 percent of marine creatures. So, the loss of coral reefs is a cause of great concern to the global community, and we should take necessary steps to prevent this loss.

QUICK FACTS

  • Corals cover less than one percent of the ocean floor, but support around 25 percent of marine creatures.
  • Pollution or temperature change causes corals to experience stress and evict the zooxanthellae algae, which leads to coral bleaching.
  • Did you know that the process of coral bleaching can be reversed?

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What is aquaponics?

Aquaponics enables the healthy growth of both fish and plants with the help of microbes in an integrated circuit. How? Let’s find out.

Farming of vegetables in nutrient-rich solution instead of soil is the basis of hydroponics, while farming of fish is called aquaculture. When the two fields merge, we have a new system called aquaponics, which draws on the benefits of both hydroponics and aquaculture.

Aquaponics enables the healthy growth of both fish and plants with the help of microbes in an integrated circuit. The water containing the excreta of the fish from the aquaculture section is channelled into the hydroponic system.

The fish waste is converted into compost naturally by nitrifying bacteria, thus enriching the water in which the hydroponic plants grow. The plants in turn extract the nutrients from the water and the filtered water is fed back into the fish tanks, completing the aquaponic cycle. Aquaponics eliminates the disadvantages of aquaculture and hydroponics. In aquaculture, fish waste accumulates in the tanks, polluting the water. In aquaponics, the waste is composted by natural means and used for the plants. In hydroponics, the nutrition is supplied by chemicals dissolved in a solution, which has to be constantly monitored. In aquaponics, the plants receive natural fertilizer. The process thus provides for an organic, chemical-free mode of growing plants.

This method has its roots in ancient China. It is suitable for growing green leafy vegetables such as Chinese cabbage, lettuce, basil, spinach, watercress and cabbage. Other vegetables such as tomato, cucumber, sweet potato, cauliflower, broccoli and eggplant can also be grown. Freshwater fish like tilapia are commonly used in this system as they can tolerate crowding and changing water conditions.

DID YOU KNOW?

Aquaponics has its roots in ancient China. It is suitable for growing green leafy vegetables and others such as tomato, cucumber, sweet potato, broccoli and eggplant.

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Why are astronomers concerned about light pollution?

Light pollution is very much a concern across the globe, something astronomers and skywatchers are trying to bring attention to. It not only takes away the right to enjoy the night skies and explore the celestial bodies with the naked eye but also affects the circadian rhythm of humans and wildlife.

Have you seen a sky spangled with stars winking at you from light years away? Have you ever spotted the Milky Way?

Well with the amount of artificial light strewn across the sky. it is a fact that dark skies that bring out the beauty of the cosmos are a rarity.

Light pollution is very much a concern across the globe, something astronomers and skywatchers are trying to bring attention to. It not only takes away the right to enjoy the night skies and explore the celestial bodies with the naked eye but also affects the circadian rhythm of humans and wildlife. So what is light pollution?

Light Pollution

Across the world, people have to deal with the nighttime glow caused by artificial light. This has been affecting humans, wildlife, and the environment equally. There is a global movement to reclaim the dark sky and reduce light pollution.

Sources of light pollution

The major cause of light pollution is misdirected light which scatters out into the open sky caused by human activities. From street lights to lights from buildings, boats, and outdoor advertising to illuminated sporting venues, every misdirected light leads to light pollution. High levels of sky glow mean fewer chances of seeing enough celestial bodies in the sky.

The circadian rhythm and light pollution

Artificial light can affect the circadian rhythm in both humans and animals. The circadian rhythm is the natural process regulating the sleep-wake cycle. The production of the hormone melatonin is linked to this. This sleep-inducing hormone gets released when it is dark. The presence of light inhibits it. If the ambient light is high at night, then it lowers the production of melatonin and leads to sleep deprivation, stress, fatigue, and anxiety.

Animal behaviour and light pollution

It has been proven that wildlife has also been affected badly by light pollution. The animal behaviours such as migration patterns and wake-sleep habits of animals have been affected. Birds and sea turtles have been found to lose their way and get confused due to the presence of increased ambient light. Light also affects the circadian rhythm of animals.

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