The eras of the geologic time scale are best defined by a. Changes in climate b. Asteroid impacts c. Mass extinction events d. Old scientists in lab coats​

Answers

Answer 1

Hey there! I'm happy to help!

The Earth is extremely ancient (approx. 4.6 billion years), so its milestones are going to have to be something huge and very grand in scope that has also happened a few times.

Changes in climate can be significant, but these are not as important of an event in Earth's history to mark the different eras. While changes in climate can lead to more drastic things, the changes on their own are not good enough of a definer.

Asteroid impacts are pretty huge, but it doesn't make sense to have each era be marked by an asteroid impact because it is an extremely specific type of event and it hasn't happened a large amount of times in Earth's history, so this isn't going to be the principal marker.

Old scientists in lab coats is just a play on words of the question. Obviously the paleontologists and geologists chose what to have define the different eras, but it isn't like the scientists themselves ARE the actual markers.

The eras of the geologic time scale are best defined by C. mass extinction events. Asteroid impacts were under the umbrella of this, and that is why it wasn't the right answer. This is a much more broad term that represents the times that Earth was completely changed whether that be from an asteroid, an ice age, a volcano eruption, etc. These are huge in scope and happened many times in the history of the Earth, so it makes to have these mark the different eras.

Have a wonderful day and keep on learning! :D


Related Questions

what is the distribution of power in legislative branch and executive branch in parliamentary and presidential governments

Answers

Explanation:

Defining characteristics of the parliamentary system are the supremacy of the legislative branch within the three functions of government—executive, legislative, and judicial—and blurring or merging of the executive and legislative functions. The legislative function is conducted through a unicameral (one-chamber) or bicameral (two-chamber) parliament composed of members accountable to the people they represent. A prime minister and the ministers of several executive departments of the government primarily carry out the executive function.

What has been the main result of violence in many countries?

Answers

Well I wouldn’t say there is a “true” answer but I would say religion and politics.

What are the basic tools of Euclidean geometry?

Answers

Answer:

The straightedge and the compass.

Explanation:

The name is due to the fact that connecting points with segments, prolonging segments and drawing circles with a given center and a given radius are the basic geometric constructions described in the first three Euclidean postulates.

Describe the relationship between the oceans and starts ?

Answers

Answer:

Ocean currents act much like a conveyor belt, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. pls mark me branilest pls

Why are neutrons an important part of nuclear fusion in the sun? (Hint: Think of Einstein's equation!) How can two protons become a proton and a neutron? (Remember what we learned the second week):

Answers

Explanation:

1 Nuclear Fusion reactions power the Sun and other stars. In a fusion reaction, two light nuclei merge to form a single heavier nucleus. The process releases energy because the total mass of the resulting single nucleus is less than the mass of the two original nuclei. The leftover mass becomes energy. Einstein’s equation (E=mc2), which says in part that mass and energy can be converted into each other, explains why this process occurs. If scientists develop a way to harness energy from fusion in machines on Earth, it could be an important method of energy production.

2. A Hydrogen atom contains one Proton and zero Neutrons. When two Hydrogen nuclei collide, one of the Protons undergoes a type of radioactive decay called Beta-plus Decay, where a proton transforms into a neutron. This happens when there are too many protons in the nucleus, because the positive protons repel each other.

what is the solar system​

Answers

Answer:The solar System is gravitational bound system.Explanation:that hold the and objects orbit it. hope  this helps have great day

Hey my bad but it’s out of space

Which one is NOT a natural phenomena?
a. Tsunami
b. Volcanic eruptions
c. Biological processes
d. Water fountain​

Answers

Answer:

D

Explanation:

water fountains are installed by man

the sculpting of the Earth's topography as they carry huge quantities of water from the land to the ____________.

Answers

Hey there! I'm happy to help!

The topography of the Earth is all of the unique changes in landscape with the different formations, elevation changes, etc.

It appears that this question is talking about rivers because it mentions something that carries huge amounts of water. Rivers are a principal factor in the sculpting of the Earth's surface as water can erode rocks and transport the sediments to other locations.

Rivers take water and transport to the sea. The sea is basically the ending point of the rivers as there is no where else for it to go. It is at the lowest elevation, so the rivers can't really flow anywhere else now.

Have a wonderful day and keep on learning! :D

6. Answer the following questions in short. a. How does carbon dioxide enter the plant? b. Explain the term heterotrophic nutrition. c. Name the two types of decomposers. d. List the materials necessary for photosynthesis. 13​

Answers

Answer:

a.Carbon dioxide enter the plant  through tiny holes in a plant's leaves, flowers, branches, stems, and roots.

b.The term heterotrophic nutrition is a mode of nutrition in which organisms depend upon other organisms for food to survive.

c.Bacteria and fungi are the two types of decomposers.

d.The materials necessary for photosynthesis are :-

•carbon dioxide

•water

•sunlight.

Hope it helps you.

Which river do not have fish?

Answers

Answer:

The Yamuna is nothing but a tiny sewage drain with zero aquatic life as it leaves Delhi, says P V Dehadrai, former director-general (fishery), ICAR, who has done a study on the status of fish and fisherfolk.

Explanation:

https://www.downtoearth.org.in/coverage/there-is-no-fish-14071

San Jose, Costa Rica, is located near the equator. Choose the statement that most likely describes life in San Jose.

The people in San Jose wear lightweight clothing.
Kites are a favorite toy of the children in San Jose
Ski resorts are an important tourist attraction.
Recreational sailing is a popular activity.

Answers

Answer:

first one

Explanation:

What does ethically produced mean? Does this phrase apply to sweatshops

Answers

Hey there! I'm happy to help!

Ethically produced means that a product was produced or a service was completed in a moral way and without infringing on the rights of others.

This phrase does not apply to sweat shops. These were places with unsafe and poor working conditions where workers were worked to their max and received low wages. The leaders of these companies were so concerned about profits that they did not take into account the well being of their employees. This is definitely not ethical, so products produced in sweatshops were not ethically produced.

Have a wonderful day and keep on learning! :D

Which city has the same relative position north of the equator that Santiago has to the south

Answers

Answer:

It Is New York Maybe

Explanation:

What are two examples of human geographical features?

Answers

1. land form

2. bodies of water

3. climate

4. water

5. soil

Although the scientific method is used by most of the sciences, it can also be applied to everyday situations. Think about a problem that you may have at home, at school, or with your car, and apply the scientific method to solve it. 2

Answers

Answer:

1. Why does my car not start?

2. If I put gas in my car, will it start

3. First I will call my friend and ask for a ride to the gas station to get gas. I will take five gallon  gas can and fill it with 5 gallons of gas. I will get a ride back to my car and fill it with the 5 gallons of gas.  Then I will try to start my car.

4. The car started of the first try

5. The car was out of gas.

Explanation:

The car won't start because of low fuel. Prediction: When the car won't start, it will eventually run out of gas.

Modern civilization has been established thanks to science and technology. Almost every area of our everyday lives has benefited immensely from this growth. People then have the opportunity to take pleasure in these outcomes, which make our life more calming and enjoyable.

What is the importance of science in our daily life essay?

Our daily lives are significantly influenced by science. It has improved the comfort and ease of our lives. Science is nothing more than a methodical approach to learning and life. Science and scientific study were created as a result of man's innate curiosity, alertness, and close observation of changes in the natural world.

A conclusion is a claim supported by data from experiments and observations. It includes a summary of the findings, a determination of whether the hypothesis was supported, the importance of the study, and suggestions for further investigation.

Learn more about Scientific methods here:

https://brainly.com/question/7508826

#SPJ2

Which of the earth's spheres contains its plants and animals?

lithosphere
hydrosphere
biosphere
atmosphere

Answers

Hey there! I'm happy to help!

The lithosphere is all of the things under the Earth's surface. This includes some plants and animals, but not all of them.

The hydrosphere is all of the things in the water on Earth's surface. Once again, this includes many plants and animals, but not every single one.

The atmosphere is all of the things in the air or the sky of Earth. You guessed it, this includes many plants and animals, but not every single one.

The biosphere includes all living plants and animals on Earth's surface. The root word "bio" means life, so the biosphere is going to have to do with biology, biodiversity, biography (if you're a human), biochemistry, etc.

Have a wonderful day and keep on learning! :D

The answer is Biosphere. The biosphere has non living and living things in it

Question 4(Multiple Choice Worth 2 points)

(02.06 MC)

ABCD is a parallelogram with diagonal AC. If the measure of angle DCA is 26 and the measure of angle ABC is 113", what is the measure of angle BCA?

D

с

26°

113°

А

B

O 26

41

52

67

Hi

Answers

Answer:

BCA= 41

Explanation:

ABCD=180

DCA=26

ABC=113

BCA=?

ABC+BCA+DCA=180

113+BCA+26=180

139+BCA=180

BCA=180-139

BCA =41

Answer:

41°

Explanation:

I took the test and got it correct and other brain users confirmed it was correct.

I will list the steps on how to get the answer

Angle DCA is 26° and angle CAB is also 26° because alternate interior angles are equal.

the sum of the interior angle of a triangle is 180. So

∠CAB + ∠ABC + ∠BCA = 180°

26 + 113 + ∠BCA = 180

∠BCA  = 180 - 139

∠BCA  = 41°

in conclusion, the answer is 41°.

Hoped I helped.

Have an amazing day :)

industries that process raw materials before being transported to the market​

Answers

Hey there! I'm happy to help!

The industries that process raw materials before being transported to the market are manufacturing industries. This normally takes place in factories or processing areas.

For example, a factory might take metal that it is obtained from the Earth ( a raw material) and manufacture it into a steel beam.

Manufacturing is known as the secondary sector of the economy as it is essentially the second step in the process after raw resources (primary sector) are obtained.

Have a wonderful day and keep on learning! :D

1. Discuss how one culture contributed to modern
science.

Answers

Answer:

The Maya contributed by creating the first observatories and they learned the celestial movements. Seismologist study earthquakes, and volcanologist study volcanic eruptions .

Which of the following are the leading native languages spoken in the United States? Select all that apply.

Spanish
Chinese
Italian
Russian
English
Korean
French
Hebrew

Answers

Answer:

Spanish English French Russian Korean and Chinese

Answer:

English

Spanish

Chinese

French

Korean

Russian

Explanation:

Which of the following actions would have a positive impact on the environment?

Answers

Answer:

afforestation

cover cropping

The direction or direction of an object or a place from the position of the observer is known as​

Answers

Answer:

I believe the answer is: apparent place

Describe the different economic activities that take place in Northern Areas

Answers

Answer

From the development of world-class diamond mines and large oil and gas reserves, to a thriving tourism industry and rich cultures that attracts visitors from around the globe, the North has the potential to become an engine for economic growth for the entire country and a world class destination for investment.

4. Answer the following questions in 10 to 20 words. a) Define chronicle. b) What type of practices had worsened the life of women in the medieval period? c) Why are more literary sources available for the study of the medieval period? d) Name any two new elements introduced in the field of technology during the medieval period​

Answers

Answer:a) a factual written account of important or historical events in the order of their occurrence.b) Women did not have access to equal rights in medieval times like they do now. Child marriage, widow burning, the purdah and polygamy further worsened the women's position.c) As compared with Ancient India, a large number of literary sources are available for the medieval period. They provide more reliable information and insight into the life of the people of the period.d) The period saw major technological advances, including the adoption of gunpowder, the invention of vertical windmills, spectacles, mechanical clocks, and greatly improved water mills, building techniques (Gothic architecture, medieval castles), and agriculture in general (three-field crop rotation).

Explanation:

hope it helps you

identify one type of human activity that could put pressure on the Blue Mountains National Park.

Answers

Answer:

Brisk walking or jogging

Yard work (mowing, raking)

Dancing

Swimming

Biking

Climbing stairs or hills

Playing tennis or basketball

Explanation:

Analiza la siguiente Frase: No todos han Reaccionado bien a la inmigración, hay compatriotas que atribuyen en el sentirse desplazados o interiormente humillados a la presencia de los Caribeños

Answers

Eu amo minha mãe e e minha família e a minha mãe ent não me perguntado pq eu amo tanto a minha mãe kkkkk sim achei engraçado

What best describes the purpose of the government

Answers

Answer:

El Gobierno es el principal pilar del Estado; la autoridad que dirige, controla y administra sus instituciones, la cual consiste en la conducción política general o ejercicio del poder ejecutivo del Estado.

Explanation:

Answer 9 10 11 please

Answers

Answer:

The answer is highlighted in the screen shot below (attached)

Explanation:

I hope this helps!

The answer is

Step by step explained:

Question: The map above contains all five geographic regions of Georgia. Choose any THREE and for each, correctly identify it bynumber, describe the geography found there, and identify at least one of the major economic activities that takes place there because of its geography.

NEED HELP FAST!!!! Will give brainliest!!!

Answers

Here it’s a c d and b hope that helps a lot

how might people in siberia need to adapt to their environment?​

Answers

Answer:

Cardona concluded that the study shows how, over the more than 25,000 years that modern humans been lived in Siberia, various peoples have adapted to the region's cold weather and meaty food sources through selection on multiple genes that control several biological mechanisms.

Explanation:

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