General Knowledge Trivia

The boiling point of water is 100°C (212°F) at standard atmospheric pressure. This is the temperature at which water changes from a liquid 1 state to a gaseous state (steam). The boiling point of water can be affected by factors such as altitude and the presence of dissolved substances.  

Water, commonly known as H2O, is a simple yet vital compound consisting of two hydrogen atoms bonded to a single oxygen atom. This molecular structure forms through covalent bonds, where each hydrogen atom shares an electron with the oxygen atom, creating a stable triatomic molecule. The arrangement of these atoms gives water its unique properties which are essential to all forms of life on Earth.

Mercury is the nearest planet to the sun because it orbits closest to the sun compared to other planets in our solar system. Its proximity to the sun allows it to have the shortest orbital period, completing one orbit around the sun in just 88 Earth days. This close proximity also means that Mercury experiences extreme temperatures, with surface temperatures reaching up to 800 degrees Fahrenheit (430 degrees Celsius) during the day and dropping to -290 degrees Fahrenheit (-180 degrees Celsius) at night.

Mount Everest is the highest mountain peak in the world, standing at approximately 8,848.86 meters (29,031.7 feet) above sea level. It is located in the Himalayas, on the border between Nepal and the Tibet Autonomous Region of China. The other peaks listed—Nanga Parbat, Kanchenjunga, and K2—are also among the highest in the world, but Mount Everest holds the title of the tallest.

The Pacific Ocean is the correct answer because it is the deepest ocean in the world. It has an average depth of 12,080 feet (3,682 meters) and reaches its maximum depth at the Mariana Trench, which is approximately 36,070 feet (10,972 meters) deep. The other oceans mentioned in the options have lesser average depths compared to the Pacific Ocean.

Lemon contains citric acid. Citric acid is a weak organic acid that is found in citrus fruits like lemons, oranges, and grapefruits. It gives these fruits their sour taste and is commonly used as a flavoring agent in food and drinks. Citric acid also has various other uses, such as a cleaning agent and a preservative.

Entomology is the scientific study of insects, including their behavior, classification, ecology, and physiology. Insects are a diverse group of invertebrates that play crucial roles in various ecosystems, and entomologists study their impact on agriculture, human health, and the environment.

Nitrous oxide is commonly known as laughing gas and is used as an anesthetic. It is a colorless gas with a sweet smell and taste. Nitric oxide, on the other hand, is a different compound that is used as a vasodilator and has various other physiological functions. Halothane is a volatile inhalation anesthetic. Therefore, the correct answer is Nitrous Oxide as it is the only option that fits the description of being an anesthetic and also being commonly known as laughing gas.

The Tibetan Plateau is the correct answer because it is the largest plateau on Earth. Located in Central Asia, it has an average elevation of over 4,500 meters and covers an area of about 2.5 million square kilometers. The plateau is often referred to as the "Roof of the World" and is known for its extreme climate and unique biodiversity. It is an important geographical feature and plays a significant role in the region's weather patterns and water resources.

Helium is the gas that is commonly used to fill balloons. This is because helium is lighter than air, which allows the balloon to float. It is also non-flammable and non-toxic, making it safe for use in balloons. Oxygen is not used to fill balloons as it is not lighter than air and can be flammable. Chlorine is a toxic gas and hydrogen is highly flammable, so they are not suitable for filling balloons.