For many years, scientists thought that the ocean floor was flat. During World War II, U.S. Navy ships patrolled the oceans. A captain of one of the ships, Harry Hess, was also a geologist. He used a new device called an echo sounder to map the ocean floor. The echo sounder data showed that the ocean floor had mountains and volcanoes in addition to flat areas.
When scientists took samples of the rocks that made up the ocean floor, they discovered something surprising. The rocks closer to the mid-ocean ridge were younger in age than the rocks far away from the mid-ocean ridge. They concluded that this difference in age was another way to support the theory of plate tectonics.

Which best describes how the scientists could explain their observations?

A They thought that sediment washing in from the shore formed the

ocean floor, and continued to build out from the shore.

B They thought that strong ocean waves pushed the younger rock material toward the middle of the ocean

C They thought that wave erosion at the shore removed the younger rock layers that were on top of the older rock layers.

D They thought the young rock formed at the mid-ocean ridge and pushed the older rock toward the shore

Answers

Answer 1

Answer:

D

Explanation:

They thought the young rock formed at the mid-ocean ridge and pushed the older rock toward the shore

Hope that helps :)


Related Questions

Angle Review worksheet answers?

Answers

Answer:

Please tell me what type theres many out there then ill revise anser and this is math not geography :)

Explanation:

Which one is not a chemical component of magma?
Group of answer choices

water vaper

carbon dioxide

iron

helium

oxygen

aluminum

Answers

Answer:

iron

Explanation:

What kind of land feature is shown at point A on this topographic map?
А
A. A steep slope
B. A river
C. A gentle slope
D. A depression

Answers

A) It’s a steep slope, because the isohypses are close to each other, which indicates a steep slope

The land feature which the topographic map shown, describes at point A, is known as C. A gentle slope.

How is a gentle slope depicted?

When using a topographic map, you can spot gentle slopes by looking at areas where the contour lines are not too close to each other as is the case in point A.

Areas with contour lines close together are steep slopes because the land rises fast.

Find out more on contour lines at https://brainly.com/question/17447071.

#SPJ2

whats the difference between an air mass and a front?

Answers

Explanation:

An air mass is a body of air with a relatively constant temperature and moisture content over a significant altitude. Air masses typically cover hundreds, thousands, or millions of square kilometers. A front is the boundary at which two air masses of different temperature and moisture content meet.


Both the Sun and the Moon influence Earth's tides, but the Moon's influence is greater than
the Sun's. Why is this the case?

Answers

Even though the sun is much more larger and has stronger overall gravity than the moon, the moon is much closer to the earth so that is the reason why its gravitational gradient is stronger than that of the sun

Question 2
5 pts
Hypothesis
Take a moment to study the surface Pressure Map. Write a hypothesis using an if/then statement
that will help explain what you expect the areas of high and low pressure to be once the isobars are
drawn.

Answers

If there is a significant difference in air temperature between two adjacent regions, then it is expected that areas of high pressure will form over the colder region, while areas of low pressure will develop over the warmer region.

Based on the given information, we can hypothesize that the distribution of high and low-pressure areas on the surface Pressure Map will be influenced by the temperature gradient across different regions. If there is a substantial difference in air temperature between adjacent areas, then we can expect the formation of areas of high and low pressure. The colder region will experience higher air pressure, as the colder air tends to be denser and sinks, creating an area of high pressure. Conversely, the warmer region will exhibit lower air pressure, as the warmer air expands and rises, leading to the formation of an area of low pressure.

The temperature gradient plays a crucial role in atmospheric circulation patterns, as it drives the movement of air masses and the development of pressure systems. The pressure differences between high and low-pressure areas influence wind flow, leading to the movement of air from high-pressure to low-pressure regions. Therefore, understanding the relationship between temperature gradients and pressure systems is vital for predicting weather patterns and identifying areas of potential atmospheric disturbances.

For more questions on temperature

https://brainly.com/question/7510619

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Which of the following landforms is responsible of MOST of Egypt's population
living on 3% of the land?
Empty Quarter
Sahara Desert
Mediterranean
Oases

Answers

Answer:

Mediterranean

Explanation:

What are some of the main landforms and waterways found in North Africa?

Answers

It has the Nile river in the east, the Sahara desert and the Atlas Mountains which are in the west.

_____________ is the combined flow of return flow and DPS.

Answers

Answer:

(The sum) is the combined flow of return flow and DPS.

what would be the possible solutions to the negative impact caused by human activities in the river​

Answers

Answer:

Maybe they could you know, just not thow trash in the river?

Explanation:

They could also use energy more efficiently, they could instal renewables which are like solar and wind, they could use energy that is clos to wherever they are instead of using one thats way far away

I'm not really sure but if this helps great, if it doesn't I'm sorry

To reduce the negative impact caused by human activities on the river, it is necessary to think of solutions that promote sustainability and introduce new ways of disposing of waste produced by individuals and organizations.

How to promote sustainability?

It is essential that each individual is aware of his or her active role as a citizen, establishing simple attitudes that can generate positive impacts on the environment, such as recycling personal waste and using green transport.

Therefore, in addition to the correct disposal of urban waste, the use of alternative and renewable energies are also measures that must be implemented to promote the sustainability of rivers.

Find out more about sustainability here:

https://brainly.com/question/25350238

Who is that person over there

Answers

U SHOULD CHECK MAYBE SOMEONE IS STALKING U OH GOD RUNN

Answer:

oh thats me

Explanation:

1.1
A river profile is ...
a) a view of the river channel.
b) a view of the watershed.
c) a view drainage pattern.
d) a view of water table.

Answers

Answer:

I believe the answer is A) a view of the river channel.

When does the summer solstice occur in the Northern Hemisphere?
September 21
December 21
March 21
June 21

Answers

The answer to your question is June 21

Help please brainly !!!!!!!

Answers

Answer:

650 milliliters =0.65 liters

Which expression is equivalent to-3x(x-4)-2x(x+3)

Answers

Answer:

-5x² +6x

Explanation:

The given expression is :

-3x(x-4)-2x(x+3)

It can be done as follows :

-3x(x-4)-2x(x+3) = (-3x)(x)-(-3x)(4) - 2x(x)-2x(3)

= -3x² +12x -2x² -6x

= -3x²-2x² +12x-6x

= -5x² +6x

Hence, the equivalent expression is equal to -5x² +6x.

answer to get points

Answers

Answer:

thx

Explanation:

bet

eddhjdebhjdewbhjefhjhuuedf

What type of volcano is Mt. Fujiyama?​

Answers

Answer:

composite cone or stratovolcano

Explanation:

Composite cones, formed by violent eruptions, have layers of rock, ash, and lava

Mt. Fujiyama is a composite cone or a stratovolcano, formed by violent eruptions that have layers of rock, ash and lava

A physical change from the solid state to the liquid state is often caused by:

Answers

Answer:

Heat (the phase change caused by heat is called melting)

A physical change from the solid state to the liquid state is usually caused by melting

How is coal obtained? (How do we get it)

A) It is found deep underground
B) It is found only in the oceans
C) It is mined from hillsides and mountains

Answers

Answer:

C is probably the best answer

Explain how the Mayan calendars worked.

Answers

Answer:

Wheels Working Together The Mayan Calendar consists of three separate corresponding calendars: the Long Count, the Tzolkin (divine calendar), and the Haab (civil calendar). Each of them is cyclical, meaning that a certain number of days must occur before a new cycle can begin. The three calendars are used simultaneously.

Explanation:

a plant moves fastest when it is near the sun. true or false

Answers

Answer:

true

Explanation:

Help please brainly !!!!!!!

Answers

You need an image. Do you mind telling me the question?
insert a picture of the question and i can help!

WILL MARK BRAINLIST! what is italy shaped like? ​

Answers

Answer:

its shaped like a high heled shoe

Explanation:

two ways in which local community is involved in gold panning in Barberton ​

Answers

Answer:

The summary would be listed below per the scenario.

Explanation:

The men who began to live together searched for gold and became wealthy. As mining operations surrounding Barberton began to be discovered, people in each of these regions began to live and this location remained populated.Gold is being poured from rivers as well as holes but even gold is being poured from neighboring mines or fields.


Draw a diagram of THREE weather instrument and explain how it is used
Discuss the importance of weather forecasting.​

Answers

Explanation:

The first picture is of hygrometer.

Hygrometer, instrument used in meteorological science to measure the humidity, or amount of water vapour in the air.

Hygrometer works on the phenomenon called evaporative cooling. When water evaporates from any surface, it becomes cool because water molecules take heat energy from the surface during the evaporation. Due to this cooling effect wet bulb always shows low temperature than the dry bulb.

The second picture is of thermometer.

Thermometer for measuring air and sea surface temperature.

A thermometer has a glass tube sealed at both ends and is partly filled with a liquid like mercury or alcohol. As the temperature around the thermometer's bulb heats up, the liquid rises in the glass tube. The glass tube is mounted on a backboard that is marked in units called degrees.

The third picture is of barometer.

Barometer for measuring atmospheric pressure.

The barometer works by balancing the mercury in the glass tube against the outside air pressure, just like a set of scales. As air pressure increases—that is, as the air becomes heavier—it pushes more of the mercury up into the tube. ... So the level of mercury in the tube provides a precise measure of air pressure.

Importance of weather forecasting:-

Systematic weather records play an effective role in various professions, particularly for agriculture and businesses that are dependent on it. Agricultural processes like planting and harvesting can be planned better and carried out more efficiently if long-term weather patterns can be estimated.

On the other hand, Airlines is another region where weather plays a vital role. They need to recognise the local weather conditions in order to schedule flights. Weather forecasting helps them make perfect daily decisions, and may even help keep us out of danger.

Which of the following would be an example-of outsourcing?
A -business owner moves her/his factory overseas to India to hire cheap labor.
B-An entrepreneur works in their home producing vinyl decals on shirts to sell on Etsy
C-An entrepreneur is forced to shut down their business by the government to preserve national resources
D-A business owner chooses to keep their factory in America to provide jobs to Americans.

Answers

Outsourcing is an agreement in which one company hires another company to be responsible for a planned or existing activity that is or could be done internally, and sometimes involves transferring employees and assets from one firm to another

Both regional and flash floods result from the release of large quantities of precipitation and/or snow melt.

a. True
b. False

Answers

Answer: a. True

Explanation:

Both regional and flash floods are a result of the release of large quantities of precipitation and/or snow-melt.

Winter and spring rains combined with melting snow overfill river basins and flood the banks, triggering regional floods. Regional floods can also happen when there's lots of rain, which saturates the soil and allows runoff to flood into streams and rivers. A flash flood, also triggered by heavy rains, is a local flood, meaning that it occurs in a small geographical region.

4. Which challenges prompted New York City to take these actions? *
In 2015 the New York City Mayor's office reported that the city
had recently accomplished the following:
Reduced carbon emissions by one-fifth and achieved the
city's cleanest air in 50 years
Upgraded building codes to prepare for extreme weather
like flooding and high winds
Added nearly one million trees and six million square feet
of reflective rooftop to the city landscape
a. increasing threats to large urban areas by foreign and domestic terrorism
b. a widening gap in income levels between socioeconomic groups in society
c. escalating costs of providing health care and social services for senior citizens
d. Aging infrastructure and pollution caused by high population density

Answers

The correct answer is D. Aging infrastructure and pollution caused by high population density

Explanation

During the nineteenth and twentieth centuries the population of New York City increased due to industrialization and commerce, this caused large pollution and the city grew disorganized. That caused that in the twentieth century the city had high levels of pollution and infrastructure that required repairment. Due to this in the first decade of the new century, the authorities of the city started a plan to resolve those issues. According to the above, the correct answer is D. Aging infrastructure and pollution caused by high population density

Which classification best describes polygon

Answers

This polygon is called Nonagon.

Explain why soils have different level of consistency.​

Answers

Answer:

Soil consistency is the strength with which soil materials are held together or the ... For wet soils, it is expressed as both stickiness and plasticity, as defined below. ... First, determine stickiness, that is, the ability of soil materials to adhere to other.

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