Answer:
The K-T extinction event is the global mass extinction that has taken place about some 65 million years back due to the asteroidal impact. This mass extinction event has wiped almost 75% of the plants and animal species from the earth's surface. The dinosaurs were extinct and very animal species have survived and undergone evolution in due course of time.|
The Cenozoic era started after the K-T mass extinction event, i.e from about 65 million years to the present.
Thus, the Cenozoic era is also known as the age of mammals because mammal were more abundant and diverse then. Many flowering plants evolved during this time and the earth experienced global cooling.
Answer:
Explanation:
Originally, astronomers considered a GMT day to start at noon, while for almost everyone else it started at midnight. To avoid confusion, the name Universal Time was introduced to denote GMT as counted from midnight.
Answer:
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Oceanic and continental plates are colliding.
Explanation:
On the image, we can see an oceanic plate on the left, and a continental plate on the right, moving toward each other and colliding. Because the two plates have different densities, thickness, and elevation, one of the subducts below the other, that being the oceanic plate. As the oceanic plate subducts below the continental plate, it gradually moves down in the mantle layer, getting melted, recycled, and maybe the same material be pushed toward the surface again.
On the plate boundary, convergent in this case, there is intense geological activity. Magma manages to rise through the cracks and gaps, and it forms volcanoes, creating a continental volcanic arc. Also, there are lot of earthquakes at such boundaries, as there is constant adjustment of the crust.
Such boundaries can be found between the:
- Pacific and North American plates
- Pacific and Eurasian plates
- Pacific and Australian plates
- Pacific and Philippine plates
- Nazca and South American plates
- Cocos and North American plate
Learn more about convergent plate boundaries brainly.com/question/12698571
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