I don’t know there science in it but car fuels doesn’t do any good
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.
Answer:
Explanation:
under colonial rule by Spain from the 16th century to the 19th century, and briefly by Great Britain during the 18th century (1763–1783) before becoming a territory of the United States in 1821.
Answer:
D
Explanation:
Water consist of 2 hydrogen molecules and 1 oxygen molecule.
