Students want to determine the impact of soil erosion from the development of new housing. They plan to measure the density of a species of algae growing along the bottom of a river that flows through their town. The town is built in a heavily forested area, but a large area of trees along the river was recently clear-cut to allow for the construction of a new housing development, which has caused exposed soil to wash into the river. The river flows north to south through the town and is still forested both up- and downstream of the town. Which of the following would be the best control sample for the study?

a. A sample of water collected just downstream of the northern forest
b. A sample of water collected just downstream of the southern forest
c. A sample of distilled water
d. A sample of water collected just downstream of the housing development

Answers

Answer 1

Considering the situation described above, the statement that would be the best control sample for the study is "a sample of water collected just downstream of the northern forest."

The students want to measure the density of algae growing along the bottom of a river that flows through their town.

And given that the river flows north to south through the town, it is ideal for controlling the sample for the study through a sample of water collected just downstream of the northern forest.

Hence, in this case, it is concluded that the correct answer is option A.

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Related Questions

True or False
1. A scale shows how many units on land are equal to the units on the map.

Answers

Answer:

False

Explanation:

Maps are measured using longitude and latitude.

And the land is measured by hectare

Answer : It's false as a scale is the ratio of the actual size of an object and it's representation on a map

Which religion is most prevalent within the americas?
A.Sikhism
B.Hinduism
C.Islam
C.Christianity

Which religion is most prevalent within Europe?
A.Hinduism
B.Sikhism
C.Christianity
D.Islam

Muslims (Islam) primarily worship in which of the following regions?
A.North Africa and Southwest Asia
B.North & South America
C.Australia and Oceania
D.East and Southeast Asia

Which religion is widespread in its native Japan?
A.Confucianism
B.Islam
C.Shinto
D.Hinduism

What is the dominant religion in India?
A.Christianity
B.Hinduism
C.Islam
D.Judaism

Where is Judaism most prevalent today?
A.East Asia and North Africa
B.Israel and North America
C.Eastern Europe and Venezuela

Which religion is concentrated with are 4 on the map? (Just in case the picture is either on the bottom or bellow this question)
A.Buddhism
B.Christianity
C.Hinduism
D.Islam

Which religion is found largely within the punjab region of India?
A.Sikhism
B.Islam
C.Hinduism
D.Christianity

Which religion is most prevalent within Oceania?
A.Islam
B.Christianity
C.Hinduism
D.Sikhism

Which world regions are most likely to have people practicing Daoism?
A.Oceania
B.North & South America
C.Africa and Europe
D.East Asia and Southeast Asia

Which world regions are most likely to have people practicing Confucianism?
A.East Asia and Southeast Asia
B.Africa and Europe
C.North and South America
D.Oceania

Which world regions are most likely to have people practicing Baha’i?
A.East Asia
B.Southeast Asia
C.Southwest Asia
D.South Asia


No links

Answers

Answer:

Christanity is mostly found in Americas

Christanity is also found in Europe

A Islasm is mostly found in Africa and the Middle East

Explanation:

A ________ forms when a block of ice is buried in drift and subsequently melts, creating a pit.

Answers

A kettle forms when a block of ice is buried in drift and subsequently melts making a pit

Which of these protects the Earth from harmful radiation when found in the stratosphere, but is a pollutant at lower altitudes?

A.
carbon

B.
oxygen

C.
ozone

D.
hydrogen

Answers

C. Ozone
Bc it just makes sense tbh trust me on this one

Why do you think geographers divide the US at the Mississippi River instead of dividing it through the middle into equal halves?

Answers

Spine of America, natural barrier, significance

There are several reasons why geographers do this and some of those reasons are that the Mississippi River is:

The Spine of America Very significant to American history - Divided the original states from the newA natural barrier  

The Mississippi is considered to be the spine of the United States as it provides so much to the nation from transport to raw materials.

The Mississippi River is also very important to American history as it divided the original states from the new states that were taken over as the U.S. expanded. It was also significant in the Civil War.

Finally the Mississippi River is a natural barrier that separates the Eastern U.S. from the West.

In conclusion, the Mississippi River is important and this is why it is used to divide the U.S.

Find out more at https://brainly.com/question/20963646.

Which of these protects the Earth from harmful radiation when found in the stratosphere, but is a pollutant at lower altitudes?

A.
carbon

B.
oxygen

C.
ozone

D.
hydrogen

Answers

Answer:

the ozone protects earth

Where do the Mountain Aquifer and Coastal Aquifer occur?

Answers

Answer:

The open cavities and caves of limestone aquifers.

Explanation:

This is In general where Aquifers occur may help you

Is this there gravity in space?

Answers

Answer:

Yes. Gravity is everywhere, even in space. Here’s how gravity works: Anything that has mass generates gravity, but the effect becomes less with distance.

Explanation:

(winks and runs off)

Answer:

Yes but actually no is the answer

marble is a rock type that is found in the blue ridge province in georgia. what type of rock is this

Answers

Answer:

A marble.

Explanation:

Because it is a rock type that is found in the blue ridge province in georgia.

1. How do scientists predict the weather over our future?


2. What types of instruments do you use in your profession to help predict the weather?

Answers

Answer:

Supercomputers

Explanation:

Observational data collected by doppler radar, radiosondes, weather satellites, buoys and other instruments are fed into computerized NWS numerical forecast models. The models use equations, along with new and past weather data, to provide forecast guidance to our meteorologists.

what type of autumn weather will a low pressure system bring

Answers

Answer:

unsettled progress is the answer

pumice may float on water . give reason ​

Answers

Pumice floats on water because it has an incredibly low density due to the air bubbles inside of it. As it is blown out of a volcano (extrusive igneous), and dissolved gasses exsolve and more air gets into it before it hardens into pumice. The less dense air offsets the more dense rock, causing it to float.

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after niagara, which falls is the largest by volume in the u.s.?

Answers

Answer:

Willamette falls is the answer

Explanation:

;))

After Niagara falls, Willamette Falls is the largest by volume in the US.

Where is Niagara falls?Three waterfalls collectively known as Niagara Falls are located at the southern end of Niagara Gorge and form the border between the Canadian province of Ontario and the American state of New York. Horseshoe Falls, which crosses the international border between the two nations, is the greatest of the three. The Canadian Falls is another name for it. Within the country are the lesser American Falls and Bridal Veil Falls. With both islands located in New York, Bridal Veil Falls is separated from Horseshoe Falls by Goat Island and from American Falls by Luna Island.

Where is Willamette Falls?

In Oregon, between the cities of Oregon City and West Linn, there is a waterfall known as the Willamette Falls. It is the seventeenth widest waterfall in the world and the greatest waterfall by volume in the North western United States.

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Identify the layer of Earth’s atmosphere where the circulation and mixing of liquids and gases produce weather.

Answers

The layer of Earth's atmosphere where the circulation and mixing of liquids and gases produce weather through the turnaround and mixing of the liquids and gases is known as the troposphere

The troposphere is the layer of the Earth's surface where the formation of weather takes place and is the place where the air turns over as there is a mixing of liquids and gases which precipitates and forms.

Weather can come in different forms such as:

SunnyCloudyRainyWindySnowy, etc

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Which cycle has been significantly altered by humans and is of great concern because of its implications for global warming?

Answers

Answer:

i think its the nitrogen cycle

Plzzzzzz help! There was no earth science category but Geography should work.

Answers

Answer:

Magma

Explanation:

The correct answer is magma. Magma is found in the mantle.

In which country
are many Buddhist temples found?

No links

Answers

I would think China
China is the country with the largest population of Buddhist, approximately 244 million or 18.2% of its population

PLS HELP IT IS DUE SOON AND BRAINLIEST IF YOU GET IT CORRECT!​

Answers

Abrasion is the grinding away of rock particles carried by wind, water and gravity

Answer:

its abrasion!

Explanation:

It is the process of friction caused by scuffing, scratching, wearing down, marring, and rubbing away of materials

Which of the following best describes the compositional layers of the earth? a. All layers of the Earth below the crust are liquid. B. The only liquid layer of the earth is the mantle. C. The crust floats on top of the outer core. D. Some layers of the earth are liquid, and some are solid.

Answers

Answer:

B

Explanation:

Answer:

d. Some layers of the earth are liquid, and some are solid.

Explanation:

edge2021 :]

___ are human-made lakes and reservoirs that store water for irrigation, flood control or energy generation.

Answers

Answer:

D) Impoundments

Explanation:

Options:

A) Aquifers

B) Channels

C) Levees

D) Impoundments

E) Watersheds

D) Impoundments is correct option

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Impoundments are human-made lakes and reservoirs that store water for irrigation, flood control or energy generation. Hence, option D is correct.

What is Impoundments?

A body of water that is enclosed, such as a reservoir. the process of seizing. the seizing of foreign goods. Any action or inaction by a federal officer or employee that prevents the obligation or use of budget authority is referred to as a "impoundment." The President lacks the authority to seize money on his own.

either the process of impounded or the condition of impounded. a body of water created by impounding, such as a reservoir.

Any body of surface water that occupies a depression or bed in the earth's surface and has a definite shoreline is referred to as an impoundment.

Thus, option D is correct.

For more information about Impoundments, click here:

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The options are missing-

A) Aquifers

B) Channels

C) Levees

D) Impoundments

E) Watersheds

A hunter-gatherer society begins to adopt an agricultural lifestyle. Which of the following will most likely happen?

A) Its effects on the environment will decrease.
B) Its population will increase significantly.
C) Its need for specialization and stratification will decrease.

Answers

Answer:

B) Its population will increase significantly.

Explanation:

The rest of them are incorrect, in-fact, the opposite would happen.

The were be no significant increase or decrease on the environment.

Also, the would need to specialize.

Tropical grassland are rich in fauna.justify

Answers

Answer:

yes

Explanation:

Which of the following is NOT an example of a language distributed by migratory patterns?
O A. people in Quebec speaking both French and English
B. people in Germany speaking the same language with different accents
O
C. people in the southwest United States speaking both Spanish and English
o
D. people in parts of France and Spain speaking both Basque and French or Spanish
<
E people in Madagascar speaking a language related to those of Indonesia and the Philippines

Answers

Migration describes a situation whereby citizens from a particular country move in other to settle elsewhere, usually in another country. Hence, a scenario which does not exhibit language distributed by migratory pattern is people in Germany speaking the same language with different accents

People within a particular country may have different accent, yet speaking the same language.

However, the presence of different languages within a certain country exhibits a migratory pattern in the distribution of languages in such country.

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If you were standing in Iran, in what direction would you travel in order to get to Syria?

Answers

Answer:

You would need to travel west to reach Syria

Explanation:

2. How far was it from Richmond to Hampton?

Answers

Answer:

126 km far....

..............

as the frequency of a wave increases, what happens to the crests?

Answers

Answer:

If the frequency of a wave increases while its speed remains constant, the wavelength decreases i.e. the distance between successive crests decreases.

Explanation:

What are two specific examples of how multiple cultures blended in the region's food and music? Write your answer in two to three complete sentences.

Answers

Answer:

Acculturation is one of several forms of culture contact, and has a couple of closely related terms, including assimilation and amalgamation. ... Amalgamation refers to a blending of cultures, rather than one group eliminating another (acculturation) or one group mixing itself into another (assimilation).

brailest

Explanation:

Can someone tell me the answer of Quwestion 2

Answers

Answer:

winter. maybe

Explanation:

Answer:

Summer

During this period on the Northern hemisphere will be winter and it will be colder there. You can see it because the sun is closer to The Southern hemisphere and it warms more than the second one when the first one gets less  sunlight and warmth

The Indian Plate is currently moving northeast at 5 centimetres per year.

Calculate how far it will move in 1,000 years. Your answer should be given in metres.​

Answers

Answer:5000 cm after 1000 years

Explanation:

5*1000=5000

i can give more explanation if needed

have a great day

describe the main processes of water cycle

Answers

Answer:

water evaporates from the water bodies and forms clouds..then the clouds condense and finally precipitate in the form of rain,hail storms,snow etc..

hope it helps

Answer:

There are five processes at work in the hydrologic cycle: condensation, precipitation, infiltration, runoff, and evapotranspiration

Explanation:

The water cycle depicts the continual flow of water on Earth and in the atmosphere. It's a complex system with many separate processes. Liquid water evaporates into water vapour, condenses into clouds, and precipitates as rain and snow on the ground.

Evaporation, condensation, and precipitation are the three fundamental processes that make up the water cycle. Evaporation is the transformation of a liquid's surface to a gas.

Liquid water (from the ocean, lakes, or rivers) evaporates and turns into water vapour in the water cycle. Water vapour is a significant greenhouse gas as well. Evaporation, condensation, and precipitation are commonly taught as a simple circular cycle.

Evaporation, condensation, precipitation, interception, infiltration, percolation, transpiration, runoff, and storage are all processes that may be examined. When the physical condition of water changes from a liquid to a gaseous state, evaporation happens.

The water cycle is the course that all water takes as it passes through different phases across the Earth. Oceans, rivers, lakes, and even subterranean contain liquid water. The water cycle is the course taken by all water as it travels around our world.

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