The Cretaceous-Tertiary extinction event, or the K-T event, is the name given to the die-off of the dinosaurs and other species that took place some 65.5 million years ago. For many years, paleontologists believed this event was caused by climate and geological changes that interrupted the dinosaurs’ food supply. However, in the 1980s, father-and-son scientists Luis (1911-88) and Walter Alvarez (1940-) discovered in the geological record a distinct layer of iridium–an element found in abundance only in space–that corresponds to the precise time the dinosaurs died. This suggests that a comet, asteroid or meteor impact event may have caused the extinction of the dinosaurs. In the 1990s, scientists located the massive Chicxulub Crater at the tip of Mexico’s Yucatán Peninsula, which dates to the period in question.
Dinosaurs roamed the earth for 160 million years until their sudden demise some 65.5 million years ago, in an event now known as the Cretaceous-Tertiary, or K-T, extinction event. (“K” is the abbreviation for Cretaceous, which is associated with the German word “Kreidezeit.”) Besides dinosaurs, many other species of mammals, amphibians and plants died out at the same time. Over the years, paleontologists have proposed several theories for this extensive die-off. One early theory was that small mammals ate dinosaur eggs, thereby reducing the dinosaur population until it became unsustainable. Another theory was that dinosaurs’ bodies became too big to be operated by their small brains. Some scientists believed a great plague decimated the dinosaur population and then spread to the animals that feasted on their carcasses. Starvation was another possibility: Large dinosaurs required vast amounts of food and could have stripped bare all the vegetation in their habitat. But many of these theories are easily dismissed. If dinosaurs’ brains were too small to be adaptive, they would not have flourished for 160 million years. Also, plants do not have brains nor do they suffer from the same diseases as animals, so their simultaneous extinction makes these theories less plausible.
In the aspect of physical development your bone size and eye
color will stay the same seeing as how you are done physically growing, and
your eyes are there permanent color since a young age. The terms of mentally
developing, you will continue to develop throughout your life depending on what
you encounter what stressors you engage.
Answer:
Indeed has jobs at 13 if you search for them
Explanation:
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The tendency to hold onto losing stocks in the hope that they will recoup is called loss aversion.
Loss aversion is a cognitive bias that explains why the pain of loss has twice as much psychological impact as the joy of winning. Losing money or another valuable item can feel worse than gaining the same. This principle is prominent in the field of economics. What distinguishes loss aversion from risk aversion is that the utility of monetary rewards depends on what has been previously experienced or expected.
In the realm of behavioral choice, 'loss aversion' is a behavioral phenomenon in which individuals exhibit greater sensitivity to potential losses than gains. Conversely, “risk-averse” people have an increased sensitivity/aversion to options with uncertain outcomes.
Learn more about stocks here: brainly.com/question/690070
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