Why are humans so negative? The human brain has a natural tendency to give weight to (and remember) negative experiences or interactions more than positive ones—they stand out more. Psychologists refer to this as negativity bias. “Our brains are wired to scout for the bad stuff” and fixate on the threat, says psychologist and author […]
What are the three coefficient of thermal expansion?
What are the three coefficient of thermal expansion? This equation shows the relationship between α is the linear expansion, β is the superficial expansion, is volume expansion. These three coefficients of expansion for a given solid are not constant because these values totally depend on the temperature. How are the three coefficients of expansion? Expansion […]
What would happen if a gamma ray hit Earth?
What would happen if a gamma ray hit Earth? With the gamma-rays beamed directly at Earth, the radiation would destroy a significant portion of our atmosphere, specifically the ozone layer. The photons streaming from the burst would cause chemical reactions leading to photochemical smog. This would further deplete our protection from cosmic rays. How far […]
Which type of organisms are called consumers?
Which type of organisms are called consumers? Consumers are typically viewed as predatory animals such as meat-eaters. However, herbivorous animals and parasitic fungi are also consumers. Which organisms are considered Heterotrophs? Heterotrophs are known as consumers because they consume producers or other consumers. Dogs, birds, fish, and humans are all examples of heterotrophs. Heterotrophs occupy […]
Which mechanism might have led to the appearance of the Hawaiian honeycreeper?
Which mechanism might have led to the appearance of the Hawaiian honeycreeper? Geographical Isolation is the mechanism that might have led to the appearance of the Hawaiian honeycreeper. Geographical Isolation is the term used that refers to a population of animals, plants, or other organisms that are separated and unable to exchange genetic materials with […]
Why is it called Bicarb?
Why is it called Bicarb? 1 Answer. The prefix bi in bicarbonate comes from an outdated naming system and is based on the observation that there is twice as much carbonate (CO3) per sodium in sodium bicarbonate (NaHCO3) as there is in sodium carbonate (Na2CO3). Is sodium bicarbonate the same as baking soda? Baking soda […]
What are the four principles of stratigraphy?
What are the four principles of stratigraphy? Steno’s laws of stratigraphy describe the patterns in which rock layers are deposited. The four laws are the law of superposition, law of original horizontality, law of cross-cutting relationships, and law of lateral continuity. Nicolaus Steno was a 17th-century Danish geologist. Which kind of unconformity is probably the […]
What are the three roles of bacteria?
What are the three roles of bacteria? In summary, bacteria are single-celled microbes without a nucleus. Bacteria play many roles in our ecosystem. Bacteria are decomposers which break down dead material and recycle it. They also can be producers, making food from sunlight, such as photosynthetic bacteria, or chemicals, such as chemosynthetic bacteria. What are […]
Does the Earth accelerate towards you?
Does the Earth accelerate towards you? Earth accelerates towards you So the mass of the Earth relative to you is incredibly large. From Newton’s second law of motion we know that for a given force on an object the acceleration reduces as the mass of the object increases. However the Earth still accelerates towards you […]
What is the oldest commercial still running?
What is the oldest commercial still running? Discount Tire commercial What is the longest TV show in history? The Simpsons Who is the highest paid commercial actor? Jonathan Goldsmith became the ever famous ‘Most Interesting Man In the World’ in 2006. He stands as one of the highest net worth commercial actors at around $8 […]