The most likely scenario was the impact of a gigantic meteor in the Yucatan Peninsula, near Chicxulub, Mexico. The ensuing global climatic catastrophe may have been enough to cause the extinction of around 60% of all species that existed before the impact. A great amount of volcanism was also occurring around this time which also may have been a contributing factor.
many believe this was due to a hugeasteroid (rocky mass that orbits the sun) striking earth- this threw huge amounts of dust and water vapor into the atmosphere, blocking sunlight- killing plants and animals (no dinosaurs survived)
i have no idea, but im looking for it right now!! well anyway GOD BLESS YOU!!
A dust cloud would have blocked out the sun, curtailing photosynthesis. As a result plants were shut down for an extended period of time. Herbivores died out first, then carnivores.
The continental drift is what was responsible for the climate during the Jurassic period.
The extinction of dinosaurs.
The atmosphere, during the Precambrian became richer in oxygen caused by a bacteria called cyanobacteria.
Weather can change very quickly during the day. Climate takes years to change.Weather is powered by the sun.
Climate change is the amount of carbon dioxide (CO2) released by mankind into the ozone layer which has then caused a big hole just above Antarctica. Transport, Machinery and Agriculture are the main causes of climate change.
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1.) mammals,amphibians,crocodiles,turtles,insects,and land plants survived the cretaceous time. 2.) 1815 was called the year without summer because the volcanic dust, propelled into the stratosphere where it couldn't get rain, sunlight. 3.) Not only was iridium common in the last Cretaceous layers, but also microtektites, which are small glass spheres characteristic of the impact of an asteroid with terrestrial rocks that contain silicon. Shocked quartz grains, characteristic of powerful impacts, were also found. 4.) All this happened, even though the global temperature decreased by only about 2°F (1½12;°C). 5.) The Cretaceous extinction changed the face of biodiversity on Earth. After the large dinosaurs were gone, many large mammals evolved as well as many small ones. 6.) The lower part of the Cretaceous System consists of six stages: the Berriasian, Valanginian, Hauterivian, Barremian, Aptian, and Albian. 7.) Early Cretaceous characteristically deltaic and lacustrine. 8.) Late Cretaceous including marine deposits, such as sandstone and the characteristic chalk, a pure fine-grained white limestone formed largely of planktonic coccoliths. 9.) As continents continued to drift apart, the climate over much of the land became cooler and drier during the Cretaceous. 10.) plants appeared, and dinosaurs and other reptiles reached their peak of development.
The climate of the Cretaceous period was warmer and more humid than it is today. The Earth's landmasses changed during the Cretaceous and sea level was higher then than it is today.
The climate does not change during or as a result of hurricanes.
It snowed in the high altitudes. It then warmed up because of volcanic activity everywhere. Smolls Rule!!
the climate change during the shifting of the plates that was causing the making of Pangea
probably during the early part of the Cretaceous Period
Pterosaurs declined during the Late Cretaceous due to competition with early birds. The last pterosaurs became extinct in the End Cretaceous Mass Extinction, which was caused by an asteroid impact in the Gulf of Mexico.
It is highly unlikely with the current climate. However, at times, such as during the Cretaceous period, Antarctica had a much warmer climate than it does not, even supporting forests. At that time, tornadoes may have been ocurred.
andrewsarchus might have gone extinct during the central Asian extinction caused by the formation of the Himalaya Mountains 40 million tears ago or because of Habitat loss maybe Global warming and Climate change
No. If you count birds as dinosaurs, they still exist. If you don't, dinosaurs became extinct at the end of the Cretaceous, not the beginning.
Yes, T-Rex appeared during the beginning of Cretaceous about 137 million years ago.
Some animals during the cretaceous period were tapejara, microraptor, and velociraptor. There was also triceratops, styracosaurus, and the tyrannosaurus rex.
The dinosaurs were the dominant land animals during the Jurassic and Cretaceous periods, rising to dominance during the late Triassic.