How did the ancient geeks know that the earth was round

Answers

Answer 1

Answer:

Under the assumption that the Sun is very far away, the ancient Greek geographer Eratosthenes performed an experiment using the differences in the observed angle of the Sun from two different locations to calculate the circumference of the Earth.


Related Questions

characteristics of Arabian seas

Answers

Answer:

Physical features

Most of the Arabian Sea has depths that exceed 9,800 feet (2,990 metres), and there are no islands in the middle. Deep water reaches close to the bordering lands except in the northeast, off Pakistan and India.

Explanation:

Answer:

Some characteristics of Arabian Sea

The Arabian Sea issituated in the west of Arabian Peninsula, east of India and north of Pakistan and Iran.Indus river flows into this sea.Communicate with the Persian Gulf by the Strait of Hormuz.Is bordering a few countries: India, Iran, Oman, Pakistan, Somalia.

a low arithmetic density means...

Answers

Arithmetic density is the population density measured as the number of people per unit area of land. So, I would think the answer would be a low population of people in a area of land.

Arithmetic density is the population density measured as the number of people per unit area of land. or population per particular part of land.

What is Population?

All the inhabitants of a particular place known as population.

What is density?

The degree of compactness of a substance.

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The large variety of dogs that exist today were produced through __________ by humans.

Answers

Answer:

Domestication

Explanation:

During the Paleolithic age, dogs domesticated for the first time. Dogs serve as pets and companions. All dogs descended from wolves that diverged some 15,000 to 40,000 years ago that are less aggressive toward humans.

The large variety of dogs that exist today have different breeds developed by breeders who wanted to establish specific features in dogs.

1) Name the three major divisions of the Himalayas from north to south.

2) Which plateau lies between the Aravali and the vindhya ranges

3) Name the island group of India having coral origin

4) Distinguish between
a) Bhangar and Khadar
b) Western ghats and eastern ghats

5) Write the short note on the following
a) the Indian desert
b) the central highlands
c) the island group of India

PLEASE ANSWER THIS IN 5 MINUTES...

Answers

1 ) Himandri

Himachal

Siwaliks

2 ) Malwa plateau

3)Lakshadweep island

define the terms listed below: extinct valcanoes, dormant valcanoes, active valcanoes​

Answers

An active volcano might be erupting or dormant. ... A dormant volcano is an active volcano that is not erupting, but supposed to erupt again. An extinct volcano has not had an eruption for at least 10,000 years and is not expected to erupt again in a comparable time scale of the future.

how do political units create a region?

Answers

Answer: treaty’s help unit country so and lands along with trade agreements and allies and alliances even having to country’s have a common enemy to go against

Explanation:

how many contries are there in the world?​

Answers

There are 195 countries in the world today.

3  . . .  .  .  .  .  . .        

Violet just accepted a job at a new company where she will make an annual salary of
$64000. Violet was told that for each year she stays with the company, she will be
given a salary raise of $3500. How much would Violet make as a salary after 5 years
working for the company? What would be her salary after t years?

Answers

Answer:

81,500

Explanation:

Violet would be making 81,500 after 5 years with the company.

I hope this helped!

Answer:

Salary after 5 years:

3500(5)+64000=81500

Salary after t years:

3500t+64000

Explanation:

Which items are minerals or contain minerals? Check all that apply. lawn fertilizer topsoil a diamond necklace a copper electrical wire a cellular phone

Answers

Answer:

lawn fertilizer

topsoil

a diamond necklace

a copper electrical wire

a cellular phone

Explanation:

lawn fertilizer topsoil a diamond necklace a copper electrical wire a cellular phone all items are minerals or contain minerals. The correct options are all of the above contain minerals.

Color, luster, streak, cleavage, hardness, and even chemical composition can be used to identify minerals. A Geologist can define and identify the type of mineral a specimen is by using these properties.

What property refers to the ability of a mineral to resist scratching?

Hardness (H) is a mineral's resistance to scratching. It is a property that describes minerals in relation to a standard scale of ten minerals known as the Mohs scale of hardness.

A streak test is performed by rubbing the mineral on a streak plate, also known as a porcelain plate. The color of the streak left by the mineral is not always the same as the color of the mineral itself. When identifying minerals like hematite, a streak test comes in handy.

Thus, all of the above items contain minerals.

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What is the reason why geography exploded into so many directions

Answers

Answer:

THE MAIN REASON IS TECHNOLOGICAL DEVELOPMENT;DUE TO THIS

THEY IT EXPLODED!

Hope it helps

Don't hesitate to ask me for further explanation

Please I need a Brainliest

Dress warmly. The average temperature in this region never exceeds freezing. Vegetation is nonexistent and ice may reach two miles in thickness. Animal life is limited to predators which exist on marine life from the frigid waters. This climate is cold all year. This is the climate of Coats Land. What climate is this?

Answers

Answer:

cold desert

Explanation:

Coats Land is a place in the Antarctica. It is the sector of land which belongs to the British  Antarctic Territory. The climate here is Subantarctic climate. It is a cold desert where there is ice everywhere.

The climate in this place is coldest on the earth. It is also extremely dry with 166 mm  of average rainfall in a year. Vegetation does not exits. The entire land is covered with thick ice. The climate remains cold throughout the year.

what actions change soil?

Answers

Answer:

Water, wind, temperature change, gravity, chemical interaction, living organisms and pressure differences all help break down parent material. The types of parent materials and the conditions under which they break down will influence the properties of the soil formed.

hope this helped you

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Describe the path that the sun takes during the year. Explain how the location of sunrise and sunset change as you move from January through the year until you reach December.​

Answers

Answer;

At any time of day, you could theoretically set up a camera to take a picture of the landscape that encompasses the apparent position of the Sun in the sky. If you came back the next day at the exact same time, 24 hours later, you'd find that the Sun had changed its position ever-so-slightly.

Explanation:

As sunrise is the moment when the upper limb of the Sun appears on the horizon in the morning. The term can also refer to the entire process of the solar disk crossing the horizon and its accompanying atmospheric effects.

Astronomically, sunrise occurs for only an instant: the moment at which the upper limb of the Sun appears tangent to the horizon.[1] However, the term sunrise commonly refers to periods of time both before and after this point:

1.Twilight, the period in the morning during which the sky is brightening, but the Sun is not yet visible. The beginning of morning twilight is called astronomical dawn.

2.The period after the Sun rises during which striking colors and atmospheric effects are still seen.

Sunrise actually occurs before the Sun truly reaches the horizon because Earth's atmosphere refracts the Sun's image. At the horizon, the average amount of refraction is 34 arcminutes, though this amount varies based on atmospheric conditions.

Also, unlike most other solar measurements, sunrise occurs when the Sun's upper limb, rather than its center, appears to cross the horizon. The apparent radius of the Sun at the horizon is 16 arcminutes.

Hope I helped.

A plate moves south at a rate of 2 cm/year. How many meters south from its original location will the plate be in 4,000 years?
A) 8,000 meters south
B) 4,000 meters south
C) 200 meters south
D) 80 meters south

Answers

Answer:

D) 80 meters south

Explanation:

Time = 4000 years

Speed = 2 cm/year

Distance = time*speed = 4000 years * 2 cm/year = 8000 cm = 80 m south as 100 cm = 1 m

Answer:

80 meters south

Explanation:

Why do you think the Gulf can make good harbours?

Answers

Answer:

Ports are transfer hubs for trade and are usually built near natural harbors, but they can also be located hundreds of miles up rivers or lakes. For example, in Texas, the Port of Corpus Christi is located along the coast of the Gulf of Mexico.

Explanation:

During the summer solstice in the Northern Hemisphere, how many hours of daylight does the South Pole receive?
0
24
6
12

Answers

12 because they are halfway from the prime meridian and it is always cold there so meaning they don’t get sun. The answer is 12

name three ways in which agrculture provides food to people amd animals

Answers

Answer:

Food grown is source of food to both people and animals

Source of income to people

What did the Supreme Court decision in the slaughterhouse cases do for the American businesses?
A) it allowed food industries to work in cities
B) it opened companies to more shareholders
C) it removed rules from food industries
D) it showed that they have rights

the first one to answer will be named brainliest

Answers

Answer:

it showed that they rights

Explanation:

In 1873, the U.S. Supreme Court rendered a significant ruling in the Slaughterhouse Cases, which limited the protection provided by the Fourteenth Amendment's privileges and immunities section. Hence option D is correct.

What was  Slaughterhouse cases ?

According to the Slaughterhouse cases, which were decided by the U.S. Supreme Court in 1873, a citizen's "privileges and immunities," as protected by the Fourteenth Amendment against the states, were restricted to those spelled out in the charter and did not include many rights granted by the various states.

The New Orleans butchers were forced to deal with the monopoly given to Crescent Town farm animals as a result of the Slaughterhouse incidents. But the long-term effects were limited knowledge of the Privileges or Immunities Clause.

Due to the way in which the government was regulating, according to Campbell, the country's movement toward creating a monopoly violated the privilege and immunity clause. By granting a monopoly, the government was allegedly discriminating against butchers, depriving them of the same protection provided by the regulation

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In descriptions of interaction between people and the environment, the term "environmental determinism" implies that

Answers

Answer:Landform and climate

Explanation:Environmental determinism is the belief that the environment, most notably its physical factors such as landforms and climate, determines the patterns of human culture and societal development.

The area of the world called the tropics, is the area between which two named latitude lines

Answers

Answer:

Tropic of Cancer and Tropic of Capricorn

The use of remote sensing technologies, such as satellite images and aerial photography, has allowed geographers to predict where __________ may occur in South and Southeast Asia.
A. floods
B. forest fires
C. revolutions
D. animal extinction

Answers

Answer:

Its A: Floods

Explanation:

I got 100%

Locate Georgia in relation to hemisphere, continent, country, and region.
A. Hemisphere:
B. Continent:
C. Country:
D. Region: ​

Answers

Answer:

Northern/Western Hemisphere, North America, United States, South Eastern part of USA, Georgia.

Explanation:

I think I did that correctly

i need facts on 9-11 plz help me

Answers

Answer:

almost 3,000 people were killed in 9/11 and the hijackers plane crashed in a field on Pennsylvania instead of their target

Answer:

-it happened the morning of September 11 2001 at 8 45.

-the single largest loss of life from a foreign attack

ALGEBRA Find the value of n and WX if Wis between X and Y, WX = 6n - 10, XY = 17, and WY= 3n. A. n= 3; WX-8 B. n = 3; WX = 9 C. n= 9; WX= 27 D. n= 9; WX = 44​

Answers

Answer:

Option (a) is correct n = 3 and WX = 8

Explanation:

It is given that, W lies in between X and Y. It means W is the mid point of X and Y. So,

XY = WX+WY .....(1)

We have, WX = 6n - 10, XY = 17, and WY= 3n

Putting the values in equation (1)

17 = 6n - 10 +3n

17 = 9n-10

Adding 10 both sides,

17+10 = 9n-10+10

27 = 9n

⇒ n = 3

We have, WX = 6n - 10

Put n = 3,

WX = 6(3) - 10

WX = 18-10 = 8

Hence, n = 3 and WX = 8

one thing similar between Europe and the USA

Answers

Answer:

These are among the commonly cited contrasts between the United States and Europe: America believes in the untrammeled market, while Europe accepts capitalism — but curbs its excesses.

The list goes on: Social policies either do not exist in America — or are way more miserly than in Europe. Education is socially stratified and largely privatized in America, while in Europe it is universally accessible and state-financed.

Likewise, America's lack of universal health insurance is assumed to mean that people die young and live miserably. And because the market dominates, America's environment is less cared for.

What type of border can be found in The Great Wall of China?

Answers

Answer:

northern border of China

Explanation:

I hope it helped

what type of Transportation does Hawaii use ​

Answers

Answer:

The only public transportation options in Hawaii are buses.

Explanation:

Which of the following BEST describes the position of pharaoh?
A. god on earth
B. ceremonial leader
C. servant of the people
D. messenger of the gods

Answers

Answer:

A

Explanation:

As 'Lord of the Two Lands' the pharaoh was the ruler of Upper and Lower Egypt. He owned all of the land, made laws, collected taxes, and defended Egypt against foreigners. As 'High Priest of Every Temple', the pharaoh represented the gods on Earth. He performed rituals and built temples to honour the gods.

the following BEST describes the position of pharaoh is god on earth

1. Carmen travels from Lagos in Africa to Brussels in Europe. Which
of the following statements are true?
1. Her longitude does not significantly change.
II. Her latitude changes significantly.
III. She is moving toward the North.

Answers

Answer:

3. She is moving towards the north

Explanation:

Brussels is in belgium, Lagos is in Nigeria. Belgium is to the north of Nigeria.

1. Her longitude does not significantly change is false because longitude is from left to right and her left to right position changes as she moves .

2. Her latitude changes significantly is also false. Latitude is from bottom to top or north to south and Nigeria is located almost on the same latitude as Belgium is.

All of the following are nonrenewable resources except
A. natural gas

B. oil

C. gold

D. water

Answers

Water is the answer

Answer:

water

Explanation:

Water is a renewable resource.

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