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What is the prepositional phrase One theory about the extinction of dinosaurs is that a huge asteroid or comet hit the earth with such force that soot or dust in the air blocked out sunlight?
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∙ 6y ago
The 4 prepositional phrases are:
- about the extinction
- of dinosaurs
- with such force
- in the air
Taya Moore
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What is the prepositional phrase in One theory about the extinction of dinosaurs is that a huge asteroid or comet hit the earth with such force that soot or dust in the air blocked out sunlight?
The 4 prepositional phrases are:about the extinctionof dinosaurswith such forcein the air
How might a collision with a meteor or comet have caused the extinction of the dinosaurs?
The asteroid impact would have thrown an enormous amount of dust and ash into the atmosphere. This would have blocked out sunlight for months or years, killing plants. With no plants to eat, the herbivorous dinosaurs would have starved. The carnivorous dinosaurs would have then starved, since they would have had no prey.
How could an asteroid have the dinosaurs become extinct 65 million years ago?
The asteroid was about 6 miles across. When it crashed into what is now the Yucatan Peninsula, it threw so much dust into the upper atmosphere, that sunlight was blocked for months. Plants died without sunlight, and the herbivorous dinosaurs died without plants to eat. The carnivores soon died out, too, because their prey was gone. There is also evidence that the Chixculub impact preceded the dinosaur extinction by hundreds of thousands of years, until another, possibly larger asteroid struck eliminated the non avian dinosaurs once and for all. Even without the asteroids, dinosaurs were already dealing with the negative affects of climate change.
Was it a quik extinction for dinosaurs or did they die out?
For ten million years, dinosaur biodiversity decreased dramatically, with many dinosaur species slowly dying out. However, the remaining dinosaurs would have survived if it weren't for an asteroid impact that occurred right at that time, 65.5 million years ago. With sunlight blocked by dust launched by the impact, plants died and dinosaurs then starved. The end of the extinction was short, lasting only a few years at most.
What period had dinosaurs but no plants?
Plants evolved before dinosaurs, and dinosaurs depended on plants for food. The closest there came to "no plants" during the time of the dinosaurs was the mass extinction at the end, when plants died but left seeds behind that germinated when the dust thrown into the atmosphere by an asteroid impact settled and sunlight reached the surface. During that period of months or a few years without live plants, dinosaurs starved and died out.
Why are dinosaurs extinct because of plants?
Dinosaurs did not die out because of plants. They died out because of a lack of plants after an asteroid impact blocked out sunlight for months or years. With all the plants dead, the dinosaurs starved.
Why did dinosaurs become extinct and not crocodiles?
crocodiles lived because they lived in water and crocodiles had amour plates on it's back
What causes mass extinction?
Since about 90% of dinosaurs were herbivores (plant eaters), it was thought that when an asteroid hit earth and many tons of dust was thrown into the atmosphere that the result was a "long night" due to the lack of sunlight that was able to reach earth, the plants died out and without a food source, so did the dinosaurs.
How did scientists link the impact of an asteroid to the extinction of the dinosaurs?
The asteroid collision theory, which was brought to wide attention in 1980 by Walter Alvarez and colleagues, links the extinction event at the end of the Cretaceous period to a bolide impact approximately 65.5 million years ago.
What mass extinction was responsible for the extinction of the dinosaurs?
Some believe it was a natural occurring ice age. Others say it resulted from the impact of an asteroid, comet, or meteor that released enough debris into the atmosphere to trigger a "impact winter" that blocked sunlight from reaching the ground and prevented plants needing photosynthesis from growing resulting in the starvation of dinosaurs and other creatures. It could also have been the great flood that has been recorded all over the world and the dinosaurs never made it into Noahs ark :)
Which theory best describes how an asteroid striking earth may have caused the extinction of dinosaurs?
It's called "impact winter" and states that dust from the collision so reduced the sunlight that most of the plants died. As these are the base of the food chain, most of the animals that depended on them died as well.
Why arent their any dinosaurs anymore?
There are no non avian dinosaurs anymore because of the K-T extinction event 65.5 million years ago. An asteroid with a diameter of 6 miles crashed into what is now the Yucatan Peninsula, creating the Chixculub crater. It threw so much dust into the atmosphere, that sunlight was blocked for months. Plants died without sunlight, and the herbivorous dinosaurs died without plants to eat. The carnivores soon died out, too, because their prey was gone. However, birds, a group of dinosaurs, do still exist today.
