What evidence is most consistent with dinosaurs becoming extinct at the end of the Cretaceous era?
A-Mammal fossils are rare in the Cretaceous, and numerous in the Paleogene.
B-No dinosaur fossils are found above the Cretaceous-Paleogene boundary.
C-The Cretaceous-Paleogene boundary layer contains few or no fossils.

Answers

Answer 1

Answer:

Answer is B-No dinosaur fossils are found above the Cretaceous-Paleogene boundary.

Explanation:

Answer 2

The evidence that is most consistent with dinosaurs becoming extinct at the end of the Cretaceous era is that no dinosaur fossils are found above the Cretaceous-Paleogene boundary.

Hence, the correct answer is option b.

The Cretaceous-Paleogene (K-Pg) boundary, also known as the Cretaceous-Tertiary boundary, refers to a geological time boundary marking the transition between the Cretaceous and Paleogene periods, approximately 66 million years ago. It represents a significant event in Earth's history, associated with the mass extinction event that led to the demise of the dinosaurs and many other species.

The boundary is characterized by a thin layer of sediment called the K-Pg boundary clay, which contains high concentrations of the element iridium, suggesting an extraterrestrial impact event, such as a large asteroid or comet impact. This impact is believed to have triggered global environmental changes, including massive volcanic activity, wildfires, and a subsequent nuclear winter-like effect, leading to widespread extinction.

Know more about mass extinction here:

https://brainly.com/question/29774925

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Related Questions

Explain how the intesity of the tropical cyclone increased as it moves from one area to another​

Answers

Answer:

requirement for the intensification of tropical cyclones is that there must be little change in the wind speed with height above the surface. If the winds increase too much with altitude, the core of the system will no longer be vertically aligned over the warm surface that provides its energy.

HELPPP THIS IS ALMOST DUE

Answers

Answer:

I believe it is C

Explanation:

Don't hate if I'm wrong, just trying to help. :)

____ are the plates that make up Earth's crust.
O A. Continental plates
O B. Volcanic islands
O C. Oceanic plates
O D. Tectonic plates

Answers

Answer:

D. Tectonic Plates

Explanation:

The earth's crust consists of moving tectonic plates dividing the crust and are responsible for the landscape of the Earth.

D. Is the answer. tectonic plates....

A place’s distance above or below sea level is its __________. A. projection B. distortion C. estimation D. elevation Please select the best answer from the choices provided A B C D

Answers

Answer:

D. Elevation

Explanation:

Elevation is the height of a point above or below sea level.

Elevation Definition

height above a given level especially sea level (and below)

(have a great day!)

Negative effects of the green revolution in India

Answers

Answer:

5 Major Demerits or Problems of Green Revolution in India

Inter-Crop Imbalances: The effect of Green Revolution is primarily felt on food-grains. ...

Regional Disparities: Green Revolution technology has given birth to growing disparities in economic development at interred and intra regional levels. ...

Increase in Inter-Personal Inequalities: ...

Unemployment: ...

Other Problems:

Explanation:

the earth's shape is Geoid give reasons ​

Answers

Explanation:

because Earth itself isn't a sphere. It is closer to an ellipsoid, being flattened at the poles by the centrifugal force of its own rotation. But the planet isn't an ellipsoid either, because of topography.

Answer:

Explanation:

THIS IS BECAUSE OF THE THREE FORCES CENTRIPETAL ,CENTRIFUGAL AND GRAVITATIONAL FORCE.

GRAVITATION FORCE  PULL THINGS TO THE CENTER OF THE EARTH WHILE THE CENTRIFUGAL MAKES IT TO MOVE IN A CICULAR MOTION GIVING IT THE GEOID SHAPE

HOPE IT WILL HELP

The measures of the three angles of a triangle are given by 18x − 7, 12x + 9, and 4x. What is the measure of the largest angle?

Answers

Answer:

The greatest angle is [tex]18x-7[/tex]

Explanation:

According to angle sum property of a triangle, sum of all the angles of a triangle is equal to [tex]180[/tex]°.

The given angles of a triangle are [tex]18x-7,12x+9,4x[/tex]

Therefore,

[tex]18x-7+12x+9+4x=180[/tex]°

[tex]34x+2=180[/tex]°

[tex]34x=178[/tex]°

[tex]x=\frac{178}{34}=\frac{89}{17}[/tex]

[tex]18x-7=18(\frac{89}{17})-7=\frac{1602-119}{17}=\frac{1483}{17}[/tex]≈ 87.2°

[tex]12x+9=12(\frac{89}{17})+9=\frac{1068+153}{17}=\frac{1221}{17}[/tex] ≈ 71.8°

[tex]4x=4(\frac{89}{17})=\frac{356}{17}[/tex] ≈ 20.9°

Therefore, greatest angle is [tex]18x-7[/tex]

PLEASE HELPPP:))Which economic activity would be much more common in a less developed country than in a more developed country?

Answers

agricultural industry jobs

1.
People's activities __a.__
the physical environment and the physical environment __b.__
people.
a.
1. Have no affect on
2. May affect
b.
1. May affect
2. Have no affect on

Answers

Answer:

May affect Have no affect

4. Distinguish between
► Public sector industries and Joint Sector industries​

Answers

Answer:

The main difference between Public Sector and Joint Sector is on ownership. A public sector enterprise or industry is completely owned and controlled by the government while the Joint Sector enterprise, as the name, implies shares the ownership between government and private entrepreneurs.

Explanation:

Where does the name "Mercury" come from, and why do you think scientists chose that name for the planet?

Answers

The Romans knew of seven bright objects in the sky: the Sun, the Moon, and the five brightest planets. They named them after their most important gods. Because Mercury was the fastest planet as it moved around the Sun, it was named after the Roman messenger god Mercury.

I think it comes from Roman gods

Why do monopolists engage in price discrimination

Answers

A monopolist engages in the price discrimination whenever it is possible in order to capture the consumers surplus and increases his profit.
The price discrimination is the action of charging different groups of consumers different prices. A monopolist engages in the price discrimination whenever it is possible in order to capture the consumers surplus and increases his profit. In general, there are three types of price discrimination.

what's the populations of egypt ?

Answers

Answer:

Hey There!

Your answer is that Egypt has a population of 104,258,327

Explanation:

This is according to data released in this year!

HOPE THIS HELPED!

what are the neighbor island country of india​

Answers

Answer:

it is srilanka .srilanka is just below india

The answers is srilanka

Why do you think Chocolate AND Coffee are so cheap?

Answers

Answer:

//

Explanation:

Because they both come from Low Income Countries meaning the workers can be paid evry little and profit can be made easily off of the cheap prices

The two energy sources that cause the most air pollution in the Middle East are "?"
A.coal and gas
B.nuclear power and oil
C.coal and nuclear power
D.gas and oil

Answers

It’s B (I’m pretty sure it’s B if it’s not then I’m sorry)

The two energy sources that can be said to cause most air pollution in the Middle East are D.g-a-s and o-il.

Which resources cause pollution in the Middle East?

The Middle East is home to some of the largest reserves of fossil fuels so these most likely cause the pollution there.

The major fossil fuels available here are natural g-a-s and crude oil which means that option D is correct.

Find out more on crude oil at https://brainly.com/question/14260176.

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Name: The Day After Tomorrow Video-Summative ​

Answers

Answer:

Um we need the video so i cant answer your question

Explanation:

You need to give us the link for the video In order to answer this one sorry!

Which religions were brought to west and central Africa

Answers

Answer:

Christianity and Islam

If the traveler from point A goes 3 km in the east direction, 3 km in the south direction and 3 km in the north direction, which way does he return to the point where he left?​

Answers

he would arrive at the place he began if he walks 3km West

I am a four-sided shape.I have four right angels and my sides are not all equal to each other. What shape am I

Answers

Answer:

Rectangle

Explanation:

Bro it just exists like that.

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