Q3 200000 per day population is net of death. And few facts: How many people can Earth actually support?
It's no surprise that as the world population continues to grow, the limits of essential global resources such as potable water, fertile land, forests and fisheries are becoming more obvious. You don’t have to be a maths whizz to work out that, on the whole, more people use more resources and create more waste. But how many people is too many? How many of us can Earth realistically support? Influenced by the work of Thomas Malthus, 'carrying capacity' can be defined as the maximum population size an environment can sustain indefinitely. Debate about the actual human carrying capacity of Earth dates back hundreds of years. The range of estimates is enormous, fluctuating from 500 million people to more than one trillion. Scientists disagree not only on the final number, but more importantly about the best and most accurate way of determining that number—hence the huge variability. [image: ###some alt text]The majority of studies estimate that the Earth's capacity is at or beneath 8 billion people. Data source: UNEP Global Environmental Alert Service / One Planet, How Many People? (PDF) <http://na.unep.net/geas/archive/pdfs/geas_jun_12_carrying_capacity.pdf> This is a little unsettling considering that as of September 2017, the global population sits at 7.5 billion, and is continuing to grow by around 80 million people per year. But whether we have 500 million people or one trillion, we still have only one planet, which has a finite level of resources. Considering our population will continue to rise for some time, how do we accommodate everyone? The answer comes back to resource consumption. People around the world consume resources differently and unevenly. An average middle-class American consumes 3.3 times the subsistence level of food and almost 250 times the subsistence level of clean water. So if everyone on Earth lived like a middle class American, then the planet might have a carrying capacity of around 2 billion. However, if people only consumed what they actually needed, then the Earth could potentially support a much higher figure. But we need to consider not just quantity but also quality—Earth might be able to theoretically support over one trillion people, but what would their quality of life be like? Would they be scraping by on the bare minimum of allocated resources, or would they have the opportunity to lead an enjoyable and full life? Perhaps Ghandi was right when he said ‘The world has enough for everyone's need, but not enough for everyone's greed’. Considering that people in developed, westernised countries are not only the highest consumers of all resources, but also the largest producers of waste, it might be time to take stock of our own consumption patterns, and consider what part we can play in ensuring a healthy future not only for Earth, but everyone on it. xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Q3 Life forms: The phraseology may not be accurate. "Your skin is your largest organ. And it’s teeming with trillions of microorganisms, like bacteria, fungi, and viruses. These invisible life-forms are known as the skin microbiome. They’re an important part of your overall health." even the brain has neutrons. So they are life and death of any species. KR IRS 17 6 23 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Q3 Hummingbird correction: other also do but the difference is: "The hummingbird is the only bird that can fly backwards and upside down without relying on the wind <https://www.worldatlas.com/articles/which-is-the-only-bird-that-can-fly-backward.html> . Other birds like warblers, herons, flycatchers, chickens, quails, and pheasants can fly backward, but only for short distances or with the help of the wind <https://www.worldatlas.com/articles/which-is-the-only-bird-that-can-fly-backward.html> . The hummingbird's unique wing design allows it to hover in mid-air and move in any direction <https://www.worldatlas.com/articles/which-is-the-only-bird-that-can-fly-backward.html> . xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx On Fri, 16 Jun 2023 at 19:45, 'gopala krishnan' via iyer123 < [email protected]> wrote: > *CULTURAL QA 06-2023-17* > > Q1 Is it necessary to use the dryer with a front load washer? > > A1 Marcus Moore, HVAC Superintendent (2019–present)9m > > No, a dryer is optional with a front load or top load washer. > > *2nd answer-Gopala Krishnan, Former Assistant* General Manager 1996-2004 > at Department of Telecom (1966–2004)0y > > I am writing this answer from Chennai, India. The best washed clothes > after washing will have at least 30% water with it. After using dryer, 20% > water will be removed and weight of clothes is reduced. The weight of > the cloth on clothes line is reduced, and drying will be more quick. > > Especially in winter when rain fall is continuous , dryer is a big > advantage. The dryer is more effective in semi- automatic machines. > > It is a practice to run dryer twice in automatic washing machines so > that 95% water is removed from clothes. > > *3rd answer- Claire Jordan, Worked at National* Health Service (NHS)4y > > Yes. Virtually every household in the UK has one. > > Q2 Why does an airplane increase its altitude during the flight? > > A2 Vishnu Ravi, Aviation Enthusiast | Content Creator 8h > > Airplanes soar to greater altitudes during flight for a multitude of > compelling reasons: > > *Fuel Efficiency: One cannot overstate the* significance of fuel > efficiency. As aircraft ascend to higher altitudes, the thin air > significantly diminishes drag, resulting in reduced fuel consumption while > maintaining optimal speed. > > *Enhanced Speed: The higher an airplane climbs,* the thinner the > atmosphere becomes, enabling it to slice through the air with heightened > efficiency and swiftness. This empowers planes to achieve greater speeds > and reach their destinations in shorter timeframes. > > Weather System Avoidance: By ascending to heights of 30,000 feet and > beyond, aircraft gain the advantage of evading turbulent weather systems. > This ensures a smoother and more comfortable journey for passengers and > crew alike. > > *Extended Emergency Response Time: Elevating to* greater altitudes grants > pilots valuable moments to address emergency situations or identify > suitable landing spots. Unlike light aircraft cruising at 10,000 feet, the > increased altitude provides an enhanced window of opportunity for > resolution. > > *Weight Optimization: As planes ascend into the* skies, the weight > distribution undergoes significant changes. The burning of jet fuel, > weighing approximately 6.7 pounds per gallon, leads to a reduction in fuel > weight as the flight progresses. Combined with the reduced resistance in > the thinner atmosphere at higher altitudes, this facilitates improved > overall performance. > > *Optimal Altitude Adjustment: When a flight* commences, there exists an > ideal altitude that ensures peak performance based on the aircraft's > weight. However, as the journey progresses and fuel is consumed, the weight > distribution alters, necessitating adjustments to maintain the optimum > altitude for maximum efficiency. > > While flying at higher altitudes offers numerous advantages, it is > imperative to acknowledge the inherent risks involved. For instance, the > effectiveness of aerodynamic controls and natural aerodynamic damping > relies heavily on indicated airspeed (IAS) and experiences limited > variation. Consequently, as altitude increases, the ability of aerodynamic > flight controls to influence the aircraft's trajectory or recover from > disruptions gradually diminishes. > > Q3 What are some mind blowing facts that most people don't know? > > A4 Fact sky, Answered by Krishna Kamat,8h > > Every day the world population is growing about 2,00,000. So, can you > guess how much pressure we are putting on this Earth? > > There are more life forms living on your skin than there are people on the > planet. > > *Hummingbirds are the only known birds that can also fly backwards.* > > *The shortest living animal in the world is the Mayfly. Its entire adult > lifespan is just 24hrs.* > > *The world’s first computer mouse was wooden, not plastic.* > > Google receives more than 99,000 searches every second. > > *India tops the list of Facebook users, having 329.65 million people > active on Facebook.* > > Q4 Can a pilot fly without a co-pilot? > > A4 Rebecca Williams, Experience in Aviation15h > > Most commercial aircraft that carry passengers or cargo *require two > pilots in the cockpit: *a captain and a co-pilot (or first officer). The > captain is the pilot-in-command and has the ultimate authority and > responsibility for the flight. The co-pilot assists the captain and shares > some of the duties and tasks of flying the plane. Both pilots are > qualified and trained to fly the aircraft, and they usually alternate > between flying and monitoring roles during different segments of the flight. > > Having two pilots ensures that there is always a backup in case one of > them becomes incapacitated or unable to perform their duties. It also > allows for better workload management, situational awareness, > communication, and decision making. Two pilots can also handle complex or > emergency situations more effectively than one. > > *Some smaller or simpler aircraft may be certified for single-pilot > operation, which means that they can be flown safely by one pilot only.* > These aircraft usually have less sophisticated systems and lower > performance than multi-crew aircraft, and they may have some automation or > technology to assist the pilot. *Some examples of single-pilot aircraft > are the Cessna 208 Caravan, the Beechcraft King Air, or the Cirrus Vision > Jet. * > > When the flight is conducted under certain conditions or regulations that > allow for single-pilot operation. For example, *some countries or regions > may allow single-pilot operation for certain types of flights, such as > private, charter, or cargo flights, as long as the pilot meets certain > requirements and follows certain procedures.* > > Q5 What is the most nutritious food for seniors? > > Recipes and Food, Food Lovers | Healthy Eaters | Taste Lovers Jun 3 > > As seniors age, their nutritional needs change. They require fewer > calories but still need all the essential nutrients to maintain good > health. The key is to eat a variety of nutrient-dense foods that provide > optimal nutrition without excess calories. Here are some of the most > nutritious foods for seniors: > > 1. Fatty fish: … > > 2. Leafy greens: Dark, leafy greens such as spinach and kale are rich in > vitamins A, C, and K, as well as calcium, iron, and antioxidants. They can > help reduce the risk of chronic diseases such as cancer and cardiovascular > disease. > > 3. Berries: Berries such as blueberries, strawberries, and raspberries > are rich in antioxidants, which can help prevent damage to cells and reduce > the risk of chronic diseases. They are also a good source of fiber. > > 4. Whole grains: Whole grains such as brown rice, quinoa, and whole-wheat > bread are rich in fiber, vitamins, and minerals. They can help reduce the > risk of heart disease, diabetes, and certain cancers. > > 5. Nuts and seeds: Nuts and seeds such as almonds, walnuts, chia seeds, > and flaxseeds are rich in healthy fats, protein, and fiber. They can help > lower cholesterol and reduce the risk of heart disease. > > 6. Yogurt: Yogurt is a good source of calcium, vitamin D, and probiotics, > which can help improve digestion and boost the immune system. Choose plain, > low-fat yogurt to avoid added sugars. > > 7. Legumes: Legumes such as beans, lentils, and chickpeas are rich in > protein, fiber, and essential vitamins and minerals. They can help reduce > the risk of heart disease, diabetes, and certain cancers. > > 8. Lean protein: > > By incorporating these nutrient-dense foods into their diet, seniors can > improve their overall health and reduce the risk of chronic diseases. It is > important to consult with a healthcare provider or registered dietitian to > determine the appropriate nutrient intake for each individual. > > *All the above QA are from Quora website on 17-06- 2023.* > > *Quora answers need not be 100% correct answers .* > > *Compiled **and posted by R. Gopala krishnan, on 17-06-2023* > > > > -- > You received this message because you are subscribed to the Google Groups > "iyer123" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/iyer123/23660514.726036.1686969931647%40mail.yahoo.com > <https://groups.google.com/d/msgid/iyer123/23660514.726036.1686969931647%40mail.yahoo.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Thatha_Patty" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/thatha_patty/CAL5XZoqbjBN1OZU2CDwO2MR2tO5G3zdF%3Df0CeCVFkF-TWbh9MQ%40mail.gmail.com.
