Is making gunpowder dangerous? Gunpowder was invented by Chinese alchemists in the 9th century. When the ingredients were carefully ground together, the end result was a powder that was called “serpentine.” The ingredients tended to require remixing prior to use, so making gunpowder was very dangerous. What causes gunpowder to explode? What makes gunpowder seem […]
What bacteria can grow on Cetrimide Agar?
What bacteria can grow on Cetrimide Agar? Cetrimide agar is a type of agar used for the selective isolation of the gram-negative bacterium, Pseudomonas aeruginosa. As the name suggests, it contains cetrimide, which is the selective agent against alternate microbial flora. What do you conclude from the absence of growth on Cetrimide Agar? Lack of […]
How much is John Byrne worth?
How much is John Byrne worth? John Byrne net worth: John Byrne is a British Canadian American comic book writer and artist who has a net worth of $3 million. John Byrne was born in Walsall, Staffordshire, England, United Kingdom in 1950. Why did John Byrne leave Namor? I was unhappy to leave Namor simple […]
How many calories are in an average school lunch?
How many calories are in an average school lunch? A school lunch will provide them with 550-650 calories, which is about 1/3 of the calories they need in a day. That means if children eat breakfast and lunch at school, when they get home they will already have eaten over half of the calories they […]
Who was set up in Geneva Switzerland?
Who was set up in Geneva Switzerland? The History of Geneva dates from before the Roman occupation in the second century BC. Now the principal French-speaking city of Switzerland, Geneva was an independent city state from the Middle Ages until the end of the 18th century. John Calvin was the Protestant leader of the city […]
What are 5 examples of omnivores?
What are 5 examples of omnivores? Examples of omnivores include bears, birds, dogs, raccoons, foxes, certain insects, and even humans. Animals that hunt other animals are known as predators, while those that are hunted are known as prey. Since omnivores hunt and are hunted, they can be both predators and prey. What carnivores are in […]
What currency was introduced in 1999 and is the official currency of 19 EU nations?
What currency was introduced in 1999 and is the official currency of 19 EU nations? The euro What was the value of the euro in 1999? €100.00 What were the economic and political reasons behind the creation of the euro in 1999? On January 1, 1999, the European Union introduced its new currency, the euro. […]
Why do middle eastern eat with their hands?
Why do middle eastern eat with their hands? Food. Communal eating with shared dishes is common practice in the Middle East and is highly recognized as an expression of friendship. Hand-to-mouth eating is an important custom in many Muslim countries. However, guests should not eat with their left hand, which is considered unclean. How do […]
Are incarceration rates rising?
Are incarceration rates rising? The U.S. prison population has skyrocketed in recent years. The number of prisoners in the federal and state prisons increased from 196,000 in 1970 to 1,570,000 in 2010 (a more than 700 percent increase). Tougher sentencing laws led to increases in the length of prison sentence and the actual time served […]
What environment do foxes live in?
What environment do foxes live in? Red foxes live around the world in many diverse habitats including forests, grasslands, mountains, and deserts. They also adapt well to human environments such as farms, suburban areas, and even large communities. The red fox’s resourcefulness has earned it a legendary reputation for intelligence and cunning. Do silver foxes […]