Answer:
Subduction of Pacific plate under North American plate
Explanation:
There has been constant collision between the two plates, namely the Pacific plate and the Central American plate. As a result of which the <u>Pacific plate has got subducted</u> and <u>rate of subduction is very intense and fast</u> here because this lies in the region, commonly known as the "ring of fire".
Due to this subduction, the plates at great depth undergoes dehydration and partial melting occurs, that allows the magma to rise up to the surface forming volcanoes on the central America. There exist a huge number of volcanoes that includes cinder cone, composite as well as shield volcanoes.
Complete Question
Select the statements about the K-T boundary that are true. Select all that apply. Select all that apply. a. The K-T boundary dates to 65 million years ago (when the dinosaurs disappeared). b. The K-T boundary separates rock layers of the Cretaceous period from those of the Tertiary period. c. The K-T boundary is a thin layer of clay found only in Gubbio, Italy. d. The K-T boundary in Zumaia, Spain is sharp--representing an abrupt change in the Marine ecosystem.
Answer:
a. The K-T boundary dates to 65 million years ago (when the dinosaurs disappeared).
b. The K-T boundary separates rock layers of the Cretaceous period from those of the Tertiary period.
d. The K-T boundary in Zumaia, Spain is sharp--representing an abrupt change in the marine ecosystem.
Explanation:
In the K-T boundary,the K represents the Cretaceous period while T represents the Tertiary period.
Geologists have said the K-T period occured 65 millon years ago and the evidence was the extinction of Dinosaurs and other species taking their place.
Some researchers have claimed that it was an asteroid that hit the Earth 65 millon years ago resulting in the wiping out of dinosaurs.
The K-T boundary can be defined as the time of separation or distinction between the Cretaceous period and the Tertiary period.
The K-T boundary separated the rock layers of the Cretaceous period from the rock layers of the Tertiary period.
In the figure below, sinA = 0.7. cosA = 0.714. What is AC and AB? Solutions: sinA = opposite.
Answer:
true
Explanation:
Saturn 21,637mph
mercury 112,000 mph
saturn x4=86,548<112,000mph
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