Feb 11, 9:22:39 AM

Illusion [34]

Answer: can you be more specific?

Explanation:

3 0

4 years ago

scientists are interested in investigating how limetsone can be used to remediate the effects of acid rain. they collect water f

Stolb23 [73]

The independent variable is the amount of limestone placed inside the tanks.
The dependent variable is the ph of the water in the tanks after liming has been added.
The control group is the blood that received water, but did not receive limestone.
The amount of water could be an additional variable that was not mentioned.
A modification that would affect the results would be to place different amounts of limestone in each tank.

The dependent variable in an experiment is one that affects an outcome that can be seen. We can argue that the amount of calcium carbonate is the independent variable in the experiment since the researchers want to investigate how limestone affects acid rainwater's pH level.

A dependent variable, in turn, is one that the dependent variable affects in order to produce results. We can argue that the pH of the water is the dependent variable in the experiment above because it aims to investigate the impact of limestone on the pH of water from acid rain. The group that is not given the experimental factor is known as the control group. We can refer to the water group that did not receive any limestone as the control group as the effect of the amount of limestone on the pH change is being investigated.

Since more water can dilute the limestone by altering its impact on the water's pH, the amount of water in each blood is a variable that was not discussed but that could change the outcomes. Placing various amounts of limestone in each tank could change the outcomes and result in completely different outcomes.

To know more about limestone refer to: brainly.com/question/11726100

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The complete question is:

Scientists are interested in investigating how limestone can be used to remediate the effects of acid rain. They collect

water from a lake that has recently been exposed to acid rain. They divide the water into 10 different tanks and add

different amounts of limestone to nine of the tanks. No limestone is added to one of the tanks. The pH of the water in the

tanks is measured before the limestone is added and once every hour for 24 hours.

(f) Identify the independent variable in this investigation.

(g) Identify the dependent variable in this investigation.

(h) Identify the control group in this investigation.

(i) Describe one additional variable that has not been mentioned that could affect the results of the investigation.

(j) Describe a modification that could be made to the investigation that would affect the results.

5 0

2 years ago

What are the three most populated countries of the world?

Mnenie [13.5K]

1.China
2.India
3.United States
and the 4th if you want it is Indonesia

8 0

3 years ago

Read 2 more answers

11- Explain how carbon moves through the Earth system (including the geosphere) and how it may benefit (e.g., improve soils for

LiRa [457]

Answer:

The Carbon Cycle. The main benefits are Plant growth and enrichment of agricultural soils. The main Harms are air pollution

Explanation:

Carbon movement on Earth is best-explained trough the Carbon Cycle, in this cycle carbon is stored, moves or is exchanged between the biosphere, the Atmosphere, Oceans, and the Geosphere.

Atmosphere storages big quantities of carbon. this carbon then cycles to the Biosphere where it is used mainly by the plants on the photosynthesis and respiration processes.

Oceans also plays an important role in the cycle by photosynthesis of seagrass and algae, the air and the sea also exchanges carbon present in the surface ocean. But also large amounts of carbon are stored in the deep ocean (about 37,000 gigatons of carbon per year).

In the Geosphere the Carbon Cycle is slower because it involves processes like rain that forms carbonic acid when in contact with the rocks, this acid promotes chemical weathering on rocks releasing elements like calcium and magnesium that are carried over to the oceans, in the oceans, Calcium carbonate is formed trough the calcification of organisms that are layered throughout the years, this calcium carbonate is then cemented and turned to rock. Organic carbon is also present in the Geosphere as a result of dead plant matter.

This carbon stored in the lithosphere is released back to the atmosphere through volcanism, and the cycle repeats.

societies greatly benefit from carbon because of the plant respiration and growth process, also carbon is an element present on rich soils for agriculture.

The main harm to society is air pollution. Humans emissions have an important impact on carbon cycle by adding more C02 to the atmosphere in the form of Black carbon (produced by combustion process) and because of deforestation, the Carbon exchange with plants is reduced, increasing pollutants to the air.

8 0

4 years ago

What's the name of the giant landmass that once contained all of the continents?

Luda [366]

Pangea is the name of the giant landmass that once contained all of the continents.

Hope this Helps!

7 0

3 years ago