Why is it useful to know the background level of extinction?
-Scientists want to see if increased extinction rates will threaten human population.
-It is part of the scientific process to observe changes in nature.
-NOAA and FWS are required by law to compare background rates to current rates.
-If current rates greatly exceed background rates, scientists say there is a chance of a mass extinction event happening.

Answer:

Any cause needs speakers and organizers. Any mass movement requires men and women of great ideas.

But information and mobilization are not enough. To be successful, revolutionary change requires people of action — those who little by little chip away at the forces who stand in the way. Such were the “conductors” of the Underground Railroad. Not content to wait for laws to change or for slavery to implode itself, railroad activists helped individual fugitive slaves find the light of freedom. The Underground Railroad was not an actual railroad but was instead a network of safe houses and routes slaves could take to escape from the South to freedom in the North.

The Underground Railroad operated at night. Slaves were moved from “station” to “station” by abolitionists. These “stations” were usually homes and churches — any safe place to rest and eat before continuing on the journey to freedom in the North, sometimes as far away as Canada. Often whites would pretend to be the masters of fugitives to prevent their capture. Sometimes lighter-skinned African Americans took this role. In one spectacular case, Henry “Box” Brown arranged for a friend to put him in a wooden box, where he had only a few biscuits and some water. His friend mailed him to the North, where bemused abolitionists received him in Philadelphia.

Most of the time, however, slaves crept northward on their own, looking for the signal that designated the next haven. This was indeed risky business because slave catchers and sheriffs were constantly on the lookout. Over 3,200 people are known to have worked on the railroad between 1830 and the end of the Civil War. Many will remain forever anonymous.

Perhaps the most outstanding “conductor” of the Underground Railroad was Harriet Tubman. Born a slave herself, after she escaped to Philadelphia, she began working on the railroad to free her family members. Throughout the 1850s, Tubman made 19 separate trips into slave territory. She was serious about her mission. She threatened to shoot any slave who had second thoughts with the pistol she carried on her hip. By the end of the decade, she was responsible for freeing about 300 slaves. When the Civil War broke out, she used her knowledge from working the railroad to serve as a spy for the Union.

Needless to say, slave owners did not appreciate the Underground Railroad. Although they disliked Abolitionist talk and literature, the railroad was far worse. To them, these were simple cases of stolen property. Slave catchers often travelled to the North to try to recapture freed slaves. When Northerners rallied around freed slaves and refused to compensate former slave owners, Southerners felt they were being robbed of property.

This disagreement over freed slaves llaysyet another brick of the foundation for the South to eventually secede from the Union and help spark the American Civil War.

Btw :

stay safe! :3

Answer: yes???? maybe????

Explanation:

sorry your question isnt that clear

Answer:

Explanation:

You can prove you are a U.S. citizen by birth in the U.S. or one of its territories with a certified copy of your birth certificate.

Answer:

you also can prove us united state america

Answer:

Human Community behaves as its tradition, beliefs, modern technology, superstitions, etc. The social problems are these types of problems that are happen in the society. This hampers the society by putting a negative impact in the development process.

Answer:

1. A

2. B

3. C

4. B

5. B

6. ( im not sure on this one) but i think.. D

7. D

8. the choices are all correct, which is why im confused... maybe there is an  option for "all of the above"?

9. D

10. A

there you go! i hope im not late at all:) please rate if this helped!!

Explanation:

Northern reaction against the Fugitive Slave Act was strong, and many states enacted laws that nullified its effect, making it worthless. In cases where the law was enforced, threats or acts of mob violence often required the dispatch of federal troops.

Answer: Social rules should be amended or changed as time goes. The world is becoming more sophisticated, things are done faster and easier although it is causing damages too as it's not really easy for people to cope with the change happening in the world

Explanation:

Social rules should be amended or changed as time goes. The world is becoming more sophisticated, things are done faster and easier although it is causing damages too as it's not really easy for people to cope with the change happening in the world. One of the rules that would need to be amended is that regarding dowries. Dowries can be done in a better way than what he's been held, which puts so much burden on the man. They could make the cost much cheaper or bring up a new means to show you are now capable to marry someone

Answer:similarities  between prehistoric human's and human's todays rituals and beliefs are that they used religious rituals as a way to relax ..

Explanation:

common sense

Answer:

An aptitude is a component of a competence to do a certain work at certain level.

Answer:

oppression of the poor

racial inequality

Abortion laws that take away people's control over their bodies, anti-queer laws, things like conversion therapy etc.

Answer:

Si define los precios en su negocio y la gente compra los productos, ganaría más dinero definiendo los precios, creo que cuanto mejor es el producto, mejor debería ser el precio.

La respuesta correcta para esta pregunta abierta es la siguiente.

Ventajas que las migraciones tienen para el país que los recibe.

1) Reciben una buena cantidad de trabajadores para fábricas e industrias pesadas.

2) Son trabajadores que están dispuestos a recibir salarios más bajos, comparados a los de los ciudadanos de ese lugar.

3) El país que los recibe no está obligado a pagarles ningún servicio de salud.

4) A esos migrantes se les descuenta o retiene el impuesto cuando les pagan, y también cuando compran cosas, se les cobra el impuesto como a cualquier persona. Por lo que indirectamente contribuyen a una mayor recaudación en el país que los recibe.

5) Existe una mezcla entre la cultura del migrante y la cultura del residente.

Ventajas para el país de origen de los migrantes

1) Las personas que se van del país ya no representan una carga para el gobierno.

2) Los que emigran dejan de utilizar los servicios públicos de salud.

3) El gobierno deja de ofrecer educación gratuita. Menos inversión en educación

4) El gobierno deja de invertir en infraestructura para la gente pobre como la vivienda.

5) Frecuentemente se reducen los índices delictivos en el país.  

Answer:

the person will be questioned by the judge.

Explanation:

Answer:

“Female Paul Revere,” Sybil Ludington was only sixteen years of age when she embarked on horse through the night in order to warn Patriot militia of the approaching British Army. Sybil was born in 1761 in Fredericksburg, (now called Ludingtonville) New York.

Explanation:

Answer:

Hello There!!

Explanation:

I believe we can plant trees when they are cut down so they are replaced.

hope this helps,have a great day!!

~Pinky~

Answer:

C

Explanation:

C because the sun is just like other satra in the universe. A ball of gas

Answer:

NorthEast.

Explanation:

The measures that can be adopted to reduce rural urban migration are:​

This refers to a phenomenon of movement of people from the rural areas into cities either permanently or temporarily.

Most time, the Rural-urban migration happens when the people needed a new life and improved standard of living, hence, when measures are introduced in the rural area, the people will opt to stay.

Read more about Rural-urban

brainly.com/question/11756067

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Answer: Hi, the answer would be C The Russians Revolution

Explanation: Russia didn't lose ww1 they took a lot of losses and backed out to start their communist revolution

Answer:

C: The Russians Revolution

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Have a great day :D

Answer:

germany is located in central europe.

germany was a member of the central powers during world war 1

Answer:

25v²

Explanation:

The kinetic energy in joules of a 50-kilogram runner running at v meters per second is modeled by the equation

Solution:

Kinetic energy is the energy of a body due to its motion. The kinetic energy of a body is maintained until there is a change in velocity. Kinetic energy can also be defined as the work done in accelerating a body from rest to a specified velocity. The SI unit is in Joules (J)

The formula for kinetic energy is:

K.E = (1/2)mv²

where m is the mass of the object and v is the velocity of the object.

Given that m = 50 kg and v = v, hence:

K.E = (1/2) * 50 * v² = 25v²

K.E = 25v²

Answer:

The correct answer is - B. narratives make history more engaging while remaining evidence-based.

Explanation:

Historical narratives are the oral, linguistic, and structural form based on the evidence, representation in a coherent way. It is a work of nonfiction that states the story of important historical events or developments over time.

The craft of historical narration is a very effective way to keep the audience or people interesting in the story of the historical event which is based on evidence.

Answer:

c

Explanation:

I don't think so

sana nkatulong

Answer: No crowding out effect

Explanation:

Crowding out effects only occur when the government's budget is in deficit and they have to borrow to make up for the deficit. If the budget is not in deficit as shown above, the government would not need to borrow money.

Whilst an increase in the discount rate would increase the cost of borrowing, it would not crowd out investment because some firms would still be able to borrow at the higher rates.

Answer: Environment can influence expression of genes

Explanation:

Identical twins almost share everything at birth, and so much of it, that would make you think they would both grow and rarely be differentiated from another but this differentiation can be possible when they share different location. Locations give genes room for expression, basically weather conditions, this could impact in how a child would grow, their size, colour e.t.c

That after a period of time, they would be a notable difference between the twins after sharing different locations.

Answer:

Hello There!!

Explanation:

I believe that he felt the need to control the colonists because he wanted to help pay for the French and Indian War.

hope this helps,have a great day!!

~Pinky~