Question 7
Imagine a scientist is conducting an experiment on the effects of acid on weathering rocks. In this experiment, there
are three different samples of identical rock pieces. The scientist does not add anything to the first sample. The
scientist adds 5 drops of acid the second rock and 10 drops of acid to the third rock. What is the dependent
variable?
a. Amount of weatering
b. Amount of Acid
C. Amount of rain
d. Number of Rocks

Answers

Answer 1

Answer:

a. Amount of weathering

Explanation:

In this experimental setup, the amount of weathering is the dependent variable. It is that variable that depends on the action of another.

The dependent variable usually surfaces as the one being tested for. The independent variable does not rely on anything. It is usually the cause of the phenomenon observed in the experimental procedure.

In this case, the amount of acid is the independent variable.

The dependent variable is the amount of weathering.


Related Questions

How did the way the Persian government handled religion throughout the empire help preserve social and political order?

Answers

Answer:

In the Persian Empire, since the period of Achaemenid dynasty there was an existing principle of religious tolerance, that was spread throughout the whole country.

Explanation:

Even during the reign of Cyrus the Great, who was the first important ruler of the Empire a religious tolerance was established. He was known in history as a ruler who freed Jews from Babylonian captivity, but also as someone who brought edict throughout the country in which a principle of tolerance dominated. This was continued during the period of his successors.

which term used to describe a cell membrane means that the membrane contains different kinds of molecules?
a. bilayer
b. mosaic
c. phospholipid
d. fluid

Answers

C, this class is also very fun!!! :)

Jeff is visiting his Dad for the weekend, he told his friend Carla that he is in a large city with huge buildings. Which one of the 5 themes of geography is Jeff using when he describes where his Dad lives?

Place


Movement


Region


Location


Human Environment Interaction

Answers

Answer:

region

Explanation:

I need to type something here cause there should be atleast 20 words in the answer so ignore this

what country is located in the eastern part of europe

Answers

Answer:

Slovakia

Moldova

Explanation:

Answer:

Eastern Europe is formed by countries with dominant Orthodox churches, like Armenia, Belarus, Bulgaria, Cyprus, Georgia, Greece, Moldova, Montenegro, North Macedonia, Romania, Russia, Serbia, and Ukraine for instance.

Explanation:

Pls help, will reward brainliest!!


Describe the three regions of Panama

Answers

La región occidental de Panamá es el área que comprende la parte Oeste del país que comprende desde las provincias centrales hasta la región de Chiriquí y Bocas del Toro.

Región Oriental de Panamá esta región tiene la cuenca mas extensa del país, formada por la cuenca Tuira. Chucunaque Contiene ríos como Sambú, Cucunatí, Congo y Sabanas, que desembocan en el golfo de San Miguel. Al sur se localizan los ríos Jaqué y Pavarandó.

La región metropolitana se encuentra localizada en la parte central del istmo y está constituida por las ciudades de Panamá, Colón y los centros urbanos localizados en la zona de influencia de la carretera Transístmica

A comparison of a map that shows the physical features of the Earth with a map
that shows population density would most likely lead to the conclusion that

Answers

Answer

It rains alot

Explanation:

Find m∠ABC if m∠ABC =4x + 9 and m∠EBD = 7x - 9

Answers

Answer:

7x - 9

Explanation:

Draw a response to explain how the convection currents model connects with the climate in one of the areas below:


Amazon Rain Forest
Sahara Desert
Antarctica
Global Ocean Currents


Explain the model you drew in question 1. Be sure to identify which area you selected in your opening sentence.

pls someone help i am so desperate!!

Answers

Answer:

The convection currents model connects with the climate in Global Ocean Currents.

Explanation:

Ocean currents flow to larger distances and together form the greater conveyor belt. The current model plays a dominant role in the climate of earth regions. They influence the temperatures of the regions through which they travel. The surface ocean currents are driven by winds and effects of the Coriolis force. Deep ocean currents are driven by density and temperature changes. The thermohaline circulation in oceans forms a part of the ocean circulation and driven by temperature and density variations. They get the heat from the magma that lies in the mantle and moves in convection currents which rises towards the curst and cool down.

which practice is associated with the Islamic faith

A. Refusing to eat meat on fridays
B. Praying 5 times a day
C. Following the eightfold path
D. Worshiping many gods

Answers

Answer:

B

Explanation:

Praying five times is more crucial than the rest of the choices

Knowing the daily weather forecast is most likely to affect which of the following decisions?
A. where to go on vacation
B. what clothes to wear
C. where to buy a house
D. which college to attend
Need Help ^^
Please select the best answer from the choices provided

A
B
C
D

Answers

Answer:

A. Where you go on vacation

Explanation:

The weather can affect if you can even go on vacation

hope this helps

Brainliest?

Answer:

I'm just answering so you can mark the other girl brainliest

Explanation:

strontium-147 cut into pieces what would be the half -life of each piece?

Answers

Answer:

2.62 years

Explanation:

The half life of a material is the time taken for half of the number of radioactive atoms in a radioactive material to remain.

If a radioactive material is cut into pieces, each piece has the same half life as the whole material.

Hence, if Strontium-147 is cut into pieces, each piece will have a half life of 2.62 years, just as the whole material.

Compare and contrast the climates of US and Canada. You must have one similarity and one difference.

Answers

How are the climates in Canada and the United States different and alike?
They are different by Canada is colder and closer to the poles than the US. The US also covers more area than Canada so It has many different climate zones. They are alike because they have some of the same climate zones and vegetation because they share a border.

Hope this helps!

Kiran says the polygon EFGH is a scaled a scaled copy of ABCD, but Lin disagrees. Do you agree with either of them? The

Answers

Answer:

no, it is false because you didn't scaled the polygon correctly

(BRAINLIEST) Read the journal passage from one of de Soto’s expedition members.

We continued our march until we came to two rivers, which we crossed by making rafts of pine trees, and entered a province called Otoa, where we found a much larger village than we had yet seen. We captured some Indians, to serve us as guides and interpreters.

How did American Indians most likely feel about Europeans after being captured to serve as guides and interpreters?

The American Indians felt appreciated because they were able to help.
The American Indians felt attacked and abused because they were captured.
Catching diseases from the Europeans angered them.
Being used for things other than guides and interpreters angered them.

Answers

The answer is, The American Indians felt attacked and abused because they were captured

Answer:

its b :)

Explanation:

Identify a counterexample: If the sum of two integers is even, then both the integers are even
6+ 10 = 16
3+9 = 12
14 + 9 = 23
none of these

Answers

Answer:

3+9 = 12

Explanation:

A "counterexample" is an example that shows the falseness of a statement.

Among the choices above, 3+9 = 12 is the ideal counterexample. Its sum is an even integer (12); however, its addends are odd integers (3 and 9). So, this goes against the statement above.

The first choice (6+10 = 16) is clearly not a counterexample, but an example of the statement. The second choice (14+9=23) is not a counterexample because its product is an odd integer, not an even integer. The statement is referring to the condition of an even integer for an answer.

Which of the following best explains a possible limitation of the trends assumed from the population pyramid and estimates in the data table?
(A) A period of war followed by a baby boom, similar to that of the 1940s and 1950s, is likely to occur within a generation, increasing the youth-aged cohorts.
(B) Modernization of health-care systems may result in improvements in women’s health and pregnancy and result in more children being born, increasing the youth-aged cohorts.
(C) Labor shortages may cause the government to reduce the legal barriers to immigration, and immigrant populations could increase the working-age cohorts.
(D) Decreasing populations may cause an economic decline, prompting many citizens to emigrate to other more developed countries and decreasing the working-age cohorts.
(E) Production efficiencies gained from computerization and robotization of manufacturing may free parents from long work hours and result in more time to have additional children, increasing the youth-aged cohorts.

Answers

Answer:

(D) Decreasing populations may cause an economic decline, prompting many citizens to emigrate to other more developed countries and decreasing the working-age cohorts.

Explanation:

From the bell-shaped population pyramid of Japan, the population of 2019 was about 126,265,000, a decline in the crude birth rates, and an increase of death rather than later led to the stabilization of the population pyramid and has created an aging population in Japan. This is due to internal migration and due to the advancement in technology and increasing use of robots in manufacturing activities has lead to long hours of work.This has lead to a decrease in the drop in population. It's estimated that by 2060 japan will have 40% of population aged above 65 years.

what economic system applies in China?
1.planned economic system
2.market economic system
3.traditional economic system​

Answers

Answer:

planned economic system

What do Earthquakes allow scientists to do?

Answers

Answer:

Earthquakes allow scientists to read the seismic movement of the earth's crust. Not sure tho.

Commonalities used to group languages together include __________.
A.
origins, sounds, and words
B.
sounds, dialects, and accents
C.
letters, vowels, and body language
D.
signing, spoken, and written similarities


Please select the best answer from the choices provided

Answers

Origins sounds and words

Answer:

A

Explanation:

4. Which description of the hydrologic cycle (Water Cycle) is best?
A. Ice Melts and increases the ocean volume causing flooding
B. Ice seeps into the ground doubling the size of aquifers
C. Water dries out in certain regions but floods in others
D. Water evaporates into the atmosphere and returns as precipitation

Answers

Answer:

The manner in which the hydrologic cycle can be described in simple words is that the water evaporates into the atmosphere and returns as precipitation.

Explanation:

A is not correct because this describes the changes in the water bodies and their condition depending on the climate.

B is not correct because this describes how the ice influences the water bodies located underground.

C is not correct because this describes the distribution of water based on climate conditions.

D is correct because it describes the hydrologic cycle in a simple manner, with the water evaporating into the atmosphere, then it condensates when conditions form precipitation (rain, snow, hale) occurs and falls on the surface.

A key development of civilization is Mesopotamia was

Answers

Answer:

Civilization emerged in Mesopotamia because the soil provided a surplus of food. With this surplus people could settle down to village life and with these new settlements, towns and cities began to make their appearance, a process known as urbanization.

Explanation:

Which of the following social groups exists in all known cultures?

Answers

Answer:

Types of social groups contain the following:

- Families

- Companies

- Friends

- Clubs

- Local fraternities and sororities

- Clubs

- Religious societies

Explanation:

I hope that this has helped! :)

What possible suggestion can you give to stop rural urban migration?​

Answers

Answer:

Providing jobs in rural areas

Rural-urban migration may be reduced by interventions which increase cultivatable land, equalize land or income distribution, or decrease fertility.

There are still 350 isolated indigenous groups in what section of the Americas?

Answers

Answer:

There are still 350 isolated indigenous groups in the Amazon.

Explanation:

In the past few centuries, the indigenous populations around the world, including the Americas, have suffered great losses. This has been due to the colonization, forced marriages, forced assimilation, or even genocides. Some indignous people have been luckier than others, and they have managed to survive as such until modern times.

The majority of these tribes in the Americas are located in the Amazon. The reason is simple, it is a huge area that is offering everything they need for survival, but stops the modern civilization from reaching and influence them. It is estimated that around 350 indigenous groups live in this area, though there is every chance that there are more, considering that it is small populations in question which are extremely hard to be found or contacted.

how are physical geograghy of mexico and central america similar

Answers

Answer:

uhhhhhhhhhjkbjkbjkbjb

Explanation:

no he visto a la casa de mi madre y he

how are earthquakes related to tectonic activities ​

Answers

Answer:

just tryin' to help you

The tectonic plates are always slowly moving, but they get stuck at their edges due to friction. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel.

Earthquakes are related to tectonic activities because of the plates sliding past each other. This process is called a passive plate boundary. The plates are moved due to convection currents

How jobs have been created by the environment?

Answers

Over 24 million jobs have been created from the environment, and more are to come

in a market economy supply and demand work together to:
A. lower profits for businesses
B. increase economic scarcity
c. create business competition
D. set the prices for goods

this is in apex learning by the way

Answers

Answer:

D. set the prices for goods

Explanation:

In a free-market economy, the forces of demand and supply work together to set the prices for goods.

The government has no control over price action.

In a market economy, demand and supply determine the rate of production. Demand is controlled by the want and needs of consumers. Supply responds to this by either increasing or decreasing production. In turn, the price of commodities takes shape due to these forces.

Answer:

D

Explanation:

A-P-E-X

Which of the following does NOT contribute to the creation of a "Global"
or Uniform Landscape?
O
Fast-Food Restaurants
O Service Stations
Retail Chains
Train Stations

Answers

Answer: Fast Food Resturant

Explanation:

make a list of the 10 highest mountains in the world, and indicate what kind of mountain's they are

Answers

Answer:

1 Mount Everest /

Sagarmatha /

Chomolungma 8,848[8] 29,029 8,848 Mahalangur Himalaya 27°59′17″N 86°55′31″E none 1953 145 (121)  

NepalChina

2 K2 8,611 28,251 4,020 Baltoro Karakoram 35°52′53″N 76°30′48″E Mount Everest[9] 1954 45 (44)  

PakistanChina

[10][dp 1]

3 Kangchenjunga 8,586 28,169 3,922 Kangchenjunga Himalaya 27°42′12″N 88°08′51″E * Mount Everest 1955 38 (24)  

NepalIndia

4 Lhotse 8,516 27,940 610 Mahalangur Himalaya 27°57′42″N 86°55′59″E Mount Everest 1956 26 (26)  

NepalChina

5 Makalu 8,485 27,838 2,378 Mahalangur Himalaya 27°53′23″N 87°05′20″E Mount Everest 1955 45  

NepalChina

6 Cho Oyu [11] 8,188 26,864 2,340 Mahalangur Himalaya 28°05′39″N 86°39′39″E Mount Everest 1954 79 (28)  

NepalChina

7 Dhaulagiri I 8,167 26,795 3,357 Dhaulagiri Himalaya 28°41′48″N 83°29′35″E K2 1960 51 (39) Nepal

8 Manaslu 8,163 26,781 3,092 Manaslu Himalaya 28°33′00″N 84°33′35″E Cho Oyu 1956 49 (45) Nepal

9 Nanga Parbat 8,126 26,660 4,608 Nanga Parbat Himalaya 35°14′14″N 74°35′21″E Dhaulagiri 1953 52 (67) Pakistan[12][dp 1] [13]

10 Annapurna I 8,091 26,545 2,984 Annapurna Himalaya 28°35′44″N 83°49′13″E Cho Oyu 1950 36 (47) Nepal

Explanation:

Answer:Mount Everest is a Himalayan mountain

Explanation:

Himalayan mountain

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