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.
Answer:
a) Hotel Rooms are inelastic because hotel rooms are fixed in supply and it take large amount of time to expand the number of rooms. (b) Taxi rides are elastic because the ride increase or decrease their duty time according to...
Explanation:
Answer: c. Empty Love.
Explanation:
The TRIANGULAR THEORY OF LOVE was developed by Robert Sternberg who was a Yale University Professor in the department of Psychology.
The Theory has several forms of Love, the relevant one of which is EMPTY LOVE.
According to Steinberg, Empty love refers to a couple with a high degree of commitment but no intimacy or passion. It is usually seen in early arranged marriages where the couple eventually learn to develop other feelings for their partners apart from the singular original feeling of commitment.
It can also result in strong couples who start out really well but end up being just committed with no intimacy.
It helps you maybe be more aware of your surroundings and what you are doing
Answer:
settlers brought Christianity and english language was adopted
