What evidence supports the conclusion that all the dinosaurs went extinct about 65 million years ago?

Answers

Answer 1

Answer:

Explanation:

Evidence suggests an asteroid impact was the main culprit. Volcanic eruptions that caused large-scale climate change may also have been involved, together with more gradual changes to Earth's climate that happened over millions of years.

Answer 2

Dinosaurs went extinct 65 million years ago for reasons that are still unknown, but we still have theories. So in conclusion, we know that the impact theory shows that a meteorite or asteroid hit the earth kicking up enough dust to block the sun affecting the food chain. Affecting the dinosaurs. The dinosaur-killing crash threw huge amounts of debris into the air and caused massive tidal waves to wash over parts of the American continents. There is also evidence of substantial fires from that point in history. A new theory says the dinosaurs were killed by a comet fragment that originally came from the solar system's edge. For decades, the prevailing theory about the extinction of the dinosaurs was that an asteroid from the belt between Mars and Jupiter slammed into the planet, causing cataclysmic devastation that wiped out most life on the planet.


Related Questions

The diagram shows the structure of an organelle known as the powerhouse of the cell. This organelle is responsible for releasing energy to both plant and animal cells. What is the name of this organelle?
Select one:

ribosome

chloroplast

mitochondria

nucleus

Answers

Answer:

mitochondria

Explanation:

Mitochondria is also know as the powerhouse of a cell.
So the name for this organelle is mitochondria

answer correctly plsss match the gravity statements with the correlating picture.

picture K, R, L with the number of the statement!

Answers

Answer:

1=L 2=R 3=K

Explanation:

Same size means they have the same mass

smaller the weaker

farther the weaker

bigger the stronger

closer the stronger

please help meeeeeee

Answers

B. Deserts are sometimes hot and always dry

Answer:

B. Deserts are sometimes hot and always dry

Explanation:

Deserts are characterized by extreme dryness but they can also be cooler areas such as in the Antarctic.

Hope this helped!

ANSWER CORRECTLY AND I WILL MARK YOU AS BRAINLIEST

Answers

Answer: B and D

Explanation:

The answer is B and D. Hope this helps

What's the difference between global warming and climate change?

Answers

Answer:

Global warming is the heat change caused by natural and human causes every now and then.

Climate change is the long-term effects of environmental decisions humans make, latitude, elevation, physical changes, and weather.

Global warming is the heat change caused
by natural and human causes every now and
then.
Climate change is the long-term effects of
environmental decisions humans make,
latitude, elevation, physical changes, and
weather. There fore it’s heat vs short and long term effects on climate change

help me pleaseeeeeeeee

Answers

OOH I KNOW THIS ONE!!!

Tropical Forests (A)

Answer:

tropical

Explanation:


Please help

Which statement best explains one way that a plant maintains homeostasis?

Answers

Answer:

The plants become limp when water is not available

Explanation:

hope it helps you

the plant becomes limp when water is not available.

________ is an example of a fiber-rich carbohydrate?
white rice
bacon
cheese
brown rice

Answers

Answer:brown rice

Explanation: Many of the nutrients in brown rice help keep your heart healthy. It's a rich source of dietary fiber, which can reduce your risk of death from heart disease. Brown rice also contains high levels of magnesium, which can help make you less vulnerable to heart disease and stroke.

Answer:

white and brown rice (i think, I havent done a class on nutricion in a while lol)

Explanation:

Both white and brown rice are high in carbohydrates. Brown rice is a whole grain. It contains more overall nutrition than its paler counterpart.

Now use the temperature change simulation to carry out your experiment. Record your data, as well as any necessary calculations, in the table. You can modify the table, if necessary, so it matches your experimental procedure.

Answers

Answer:

Hi,

   You need to post an image or fully copy out the question you would like us to answer as the question you refer to is not understandable thank you.

Explanation:

can u take a picture of the assignment? need more information please

Which arrows show matter moving from a secondary consumer to a tertiary consumer? Select all that apply.

Answers

Answer:

plainfin and the black rockfish

Explanation:

plain fun and the black rock fish because i did this

Which action would help reduce global warming?
A. Use more electricity.
B. Use more plastic products.
C. Use more paper products.
D. Use more fuel-efficient cars.

Answers

D. This is because fuel efficient cars will reduce carbon in the air thus reducing global warming

Answer:

its D

Explanation:

we use alot of fuel so i feel like somthing making better use of fuel would help over all decrease the total amount we use paper is made from trees wich absorb carbon dioxide and that help decrease global warming so more paer products means less trees and more global warming plastic products create carbon dioxide and cause global warming in order to produce so i stand by my awnser. not sure about the electricity part.

︶꒦꒷♡꒷꒦︶✎˚୨୧⋆。˚ ⋆ help me pls✎˚୨୧⋆。˚ ⋆︶꒦꒷♡꒷꒦︶

Answers

It is the texture of the rock! :)

Answer:

its a type of rock

Explanation:

rock have every type's of it

like in the picture that you seen today

rock have color to and hardness of it 3 of them is the correct one

its texture of the rock because it have texture

How did the Industrial Revolution contribute to global climate change?
A. It led to an increased use of alternative fuels other than fossil fuels..
B. It led to an increased use of coal, oil, and other fossil fuels.
C. It led to the release of chemicals that destroyed the ozone layer.
D. It led to the development of nonrenewable sources of energy.

Answers

Explanation:

D. It led to the development of nonrenewable sources of energy.

D. It’s led to the development of nonrenewable sources of energy

Examples of non-renewable source is coal,for example when it is burned it becomes a gas you cannot turn back to a solid or it’s coal like form

What are the differences between a roundworm and an annelid?​

Answers

Answer:

Annelids are segmented worms whereas roundworms are not segmented. Further, annelids have a true coelom while roundworms have a pseudocoelom. This means annelids have a well-developed mesoderm while roundworms lack a mesoderm.

Explanation:

Answer:

Annelids have segmented bodies while roundworms have cylindrical bodies

Annelids have a complete circulatory system whereas roundworms have an incomplete circulatory system

Annelids have a true coelom while roundworms have a pseudo coelom

Annelids have blunt-body ends whereas roundworms have tapered body ends

Explanation:

what is the phenotype for females

Answers

Answer:

Mosaic

Explanation:

Because A female is a mosaic because she consists of a mixture of two kinds of cells: each with different functional chromosomes. Because XY males have a single X chromosome, while XX females have two of them, some kind of adjustment is needed: the X chromosome inactivation.

Answer:

baceclu having secondary gender

characteristics, and behavior.

Explanation:

PLEASE HELP ME !!!!!!

Answers

Answer:

The correct answer is all of these

As when the soil is removed the tree will not grow when tree will not grow then frog which eat mainly tree when frog ceases to exist then tiger which is carnivores can also not live

PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE

it would be “all of these”

How did the Industrial Revolution contribute to global climate change?
A. It led to an increased use of alternative fuels other than fossil fuels..
B. It led to an increased use of coal, oil, and other fossil fuels.
C. It led to the release of chemicals that destroyed the ozone layer.
D. It led to the development of nonrenewable sources of energy.

Answers

The answer is c


Human activities have contributed substantially to climate change by adding c02 a chemical, and other gases that destroy the atmosphere.

The Industrial revolution has been found to contribute to the global climate change. This is due to the release of chemicals which destroyed the ozone layer. Thus, the correct option is C.

What is Industrial revolution?

The industrial revolution has been found to transformed the largely rural and agriculture-based society into the urban, machine-powered factories. This revolution has began in the Britain and soon spread to America, Japan and the other European countries. The industrial revolution has brought about several economic and social changes across the globe.

The industrial revolution has been found to contribute to global climate change. This is because since the start of the Industrial Revolution, in about the year 1750, human activities such as burning of fossil fuels, including the coal and oil, have increased the greenhouse gas concentrations in atmosphere.

Therefore, the correct option is C.

Learn more about Global climate change here:

https://brainly.com/question/27919422


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Cells divide at different rates. The fastest bacteria can divide every 20 minutes. No wonder you can feel sick with food poisoning within hours of eating undercooked food! On the other hand, some nerve cells in your body do not divide much at all. The nerve cells in a 100-year old person could be close to 100 years old.

Answers

Answer:

‍♂️

Explanation:

what is the question?

I got the science key words for the cell unit

Answers

Answer:

what am i to do here answer me and i will edit my answer

Explanation:

What do I have to answer

Which cell type in humans lacks a nucleus? Which function would this cell be unable to carry out?

Answers

mature red blood cells and cornified cells in the skin, hair, and nails contain no nucleus. Mature hair cells do not contain any nuclear DNA.

Answer:

Red Blood Cell lacks a nucleus, it would be unable to carry oxygen efficiently. The absence of a nucleus is an adaptation

Explanation:

This is a picture of a plant cell.
Which organelles listed here would you ONLY find in a plant cell (not an animal cell)? Select all that apply.
Choose all that apply:

12


4


2


8


1

Answers

Answer:

1

Explanation:

1 is a cell wall and only plants have these!

4 and 1

4-Chloroplasts - organelle responsible to carry out photosynthesis…which is a process where green plants manufacture their own food using light energy, Carbon dioxide and water ….Animals are heterotrophic they can’t photosynthesise
1- Cell wall … animal cells are irregular shaped they don’t have a wall

What is the main reason why raising cattle contributes to global warming?
A. Cattle eat grass, which reduces the amount of plants that remove atmospheric carbon dioxide.
B. Cattle store nitrogen, which is released as nitrous oxide as they die.
C. Cattle release carbon dioxide as they breathe, similar to humans.
D. Cattle have microbes in their stomach that produce methane during digestion.

Answers

The answer is D. Cattle have microbes in their stomach that produce methane during digestion
The awnser is D they release them when they fart

What happens when oxygen comes in contact with NOx and VOCs?
1. They combine to create ozone to replenish the ozone layer.
2. Oxygen neutralizes NOx and VOCs.
3. They combine to form low altitude ozone.
4. They combine to form smog.

Answers

They combine to form low altitude ozone
They combine to form low altitude ozone or C

Choose all the answers that apply.
The atmosphere:
protects the earth from harmful radiation
is made mostly of nitrogen
traps heat from the sun
O can be used to transmit radio signals

Answers

A: The atmosphere protects life on earth by shielding it from incoming ultraviolet (UV) radiation.

B: Earth’s atmosphere is made up of approximately 78% nitrogen.

C: The gasses in Earth’s atmosphere will trap the Sun’s heat in a process called the greenhouse effect.
the answer is a, b, and c



How do you think some fur-bearing species might adapt to a gradual change in climate in which global temperature iincreased

I found the answer:
Their fur could become thinner, they could shed, the fur could become lighter in 

Answers

Answer:

Their fur could become thinner, they could shed, the fur could become lighter in color.

Explanation:

I know u already answered it yourself but I need to ask a question badly!

There fur could thin and the fur could shed or lighten

Which compares the gases released by fertilizers and gases from landfills?
A. Chemicals from fertilizers can release nitrous oxide, while landfills release methane.
B. Chemicals from fertilizers can release methane, while landfills release nitrous oxide.
C. Chemicals from fertilizers can release carbon dioxide, while landfills release methane.
D. Chemicals from fertilizers can release methane, while landfills release carbon dioxide.

Answers

Answer: a

Explanation: tell me if wrong and sorry

The powerful greenhouse gas nitrous oxide is released into the atmosphere when a large portion of the fertilizer that has been applied runs off into waterways or is broken down by soil bacteria. Thus, option A is correct.

What are the gaseous release by fertilizers?

MSW goes through an aerobic (with oxygen) decomposition stage in a landfill when it is initially dumped, during which little methane is produced.

Once anaerobic conditions have been established, which normally takes less than a year, methane-producing bacteria start to break down the waste and produce methane.

However, their creation and usage have a negative impact on the environment since they release nitrous oxide.

Therefore, Chemicals from fertilizers can release nitrous oxide, while landfills release methane.

Learn more about fertilizers here:

https://brainly.com/question/308689

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Passage
A group of students is studying the types of plants that grow in a meadow next to their school. The meadow is mowed regularly, but it does not get any water other than rainfall. The meadow has several kinds of plants that are typically found in a grassland ecosystem. The plants include grass and clover. But there aren't any trees. The meadow has insects, including ants. Earthworms live in the soil. Garter snakes and mice also live in the meadow.

Answers

The factors that affect an ecosystem such as rainfall, sunlight etc are all factors in this experiment.

What are factors?

The term factors in an experiment setting refers to the variables that are being manipulated in the experiment. Usually, factors are altered to determine its effect on the results.

The factors that affect an ecosystem such as rainfall, sunlight etc are all factors in this experiment.

Learn more about experiment factors:https://brainly.com/question/16171570

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The piece of metal is magnetic and is lustrous. Is this statement an example of physical or chemical properties being describe about the metal? what is the answer

Answers

Answer:

The correct answers are options C, that is, silver tarnishes and becomes black when exposed to oxygen, and option E, that is, diesel fuel burns when it is heated.  

Explanation:

Chemical changes refer to the modifications in which the chemistry at molecular level is modified as the initial substance gets transformed into a new and different final substance. This change occurs with the dissociation of old bond and production of new bonds respectively.  

I hope this helps. :).

The statement is describing physical properties of the metal, chemical properties are properties that can only be observed when the matter undergoes a change that changes the chemical makeup, such as flammability, ability to tarnish/rust, and reactivity, whereas physical properties can be observed without a chemical reaction, such as melting point, magnetism, and appearance

PLEASE HELP ME OUT !!!!!! this is from study island btw

Answers

Answer:

the answer is D

Explanation:

soils can be basic, nuetral or acidic

D. Basic, neutral, or acidic

WILL GIVE BRIANLIEST

Compared to the amount of carbon atoms on Earth, the amount of radioactive carbon atoms is infinitesimal. In this sentence, what is the best synonym for "infinitesimal?"
A Tiny
B Large
C Equal
D Dangerous

Answers

A. Tiny because the definition of infinitesimal is extremely small
A. Tiny because the meaning to it is small
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What does it mean that stocks and bonds are relatively liquid?a. They are easier to buy and sell than other forms of investment.b. They tend to go up and down in value.C. The amount of income they can bring changes frequentlyd. There are more of them to choose from than other forms of investment True or false the incident angle is the angle formed between the barrier and the direction of wave propagation? What are data? A. Pieces of information recorded in an experiment B. Sources that summarize a primary source C. Educated guesses about the outcome of an experiment D. Variables that are adjusted by the experiment 98n+78x^2(9)n36x simplify Congruent yes or no Congruent? ___________ If so, what property? ________ HELP!!Which statement best describes why this excerpt is an appeal to pathos? y=4x+6y4x=6Which BEST describes the solution for the system of equations?A (0,6)B (0,6)C No solutionD Infinitely many solutions how does the trend Change from 1820 to 1858 (civil war) find the value of x in each of the following 2x/3=8 How are you able to tell if antibodies are found in blood plasma? Placing dabs of blue and yellow paint close to each other on a canvas will appear to your eyes like... Whoch of the foleing is likely to cause human immigration into a region? I. Job oppertunities in new region II. Lower possibikitg of persuation in the new region III. Less environmental disruption in the new regionA. I only B. II onlyC. I and III onlyD. I, II, and III Solve the system with elimination.x - 2y = 43x + y = 6? ] If the mean of nine values is 25, find the sum of the values Which of the following describes family size since the eighteenth and nineteenth centuries?1. Families are having less children today.2. More families have adopted rural lifestyles.3. Families are larger today because they are less expensive to raise.4. Family size has stayed relatively the same over the past few centuries. Once upon a time.What is the best way to change this fragment into a complete sentence? A. Once upon a time near the river on the edge of the woods. B. Once upon a time in a jungle of mush and green. C. Once upon a time out in the woods where the wolves howled. D. Once upon a time, there was a large jungle where people disappeared into the thicket. Solve the equationx+4x-7=0by completing the squaregive your answers to 2 decimal places. Mr Thando wants to build a garage.he went to local store obstain a quotation for the building material.below is the quotation from phindanani dealer Use the value of the linear correlation coefficient r to find the coefficient of determination and the percentage of the total variation that can be explained by the linear relationship between the two variables r = 0.123 What is the value of the coefficient of determination ? r ^ 2 = (Round to four decimal places as needed.) More people leave Anytown, AL each year than move into it. The population over the past 20 years is shown in the table. Use technology to find an equation that models the exponential decline. Report the rate of decline below, rounding to the nearest hundredth.YearPopulation200030,000200527,000201025,500201524,000202022,400