Isotope is the study and application of stable and radioactive isotopes to geological processes and their time scales.
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.
I already answered this. I believe you’ve posted the question more than once.
It gives meteorologists a visual. With maps they can demonstrate what they are trying to show.
<span>Scoop out any soiled bedding. Then, once a week, change the bedding completely and put in fresh bedding. More often if needed, it depends.</span>
Answer:
Calgary - E
Hudson Bay - B
British Columbia - A
Quebec City - C
Ottawa - D
Explanation:
On the presented map we have the territory of Canada. Canada is the second-largest country in the world, and it is located in the northern half of the North American continent. Despite the huge size, the country has a pretty small population that is highly concentrated near its southern border. Being such a big country, Canada has multiple marking geographical features as well.
From what we have marked on this map, there are three cities, one province, and one major geographical feature. Calgary is one of the two biggest and most developed cities in Alberta. Quebec City is the capital of the province of Quebec, as well as being its center in any aspect. Ottawa, even though much smaller than multiple other cities, is actually the capital of the country. British Columbia is a province that occupies a big portion of western Canada, and it is a highly developed province. Hudson Bay is a major geographical feature. It is a bay that goes very deep into the interior of Canada and it is so large that most countries in the world are actually smaller than it.
