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2 years ago

Eutrophication results from an excess of _____.

Chemistry

2 answers:

Andre45 [30]2 years ago

8 0

Answer:

The correct answer is option a, that is, phosphates.

Explanation:

One of the extreme environmental issues, as it leads to deterioration of water quality, is eutrophication. It is one of the prime obstructions in attaining the quality objectives set up by the Water Framework Directive. All the water bodies’ results in a slow and natural process of eutrophication, however, the process has gone through brisk progressions due to many human activities. The excess use of phosphates in the form of fertilizers is one of the prime reasons for eutrophication.

gladu [14]2 years ago

3 0

Eutrophication results from an excess of

a. phosphates

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In the equilibrium constant expression for the reaction below what is the correct exponent for N2O4?

irga5000 [103]

As we have the balanced reaction equation is:

N2O4 (g) ↔ 2NO2(g)

from this balanced equation, we can get the equilibrium constant expression

KC = [NO2]^2[N2O4]^1

from this expression, we can see that [NO2 ] is with 2 exponent of the stoichiometric and we can see that from the balanced equation as NO2
is 2NO2 in the balanced equation.

and [N2O4] is with 1 exponent of the stoichiometric and we can see that from the balanced equation as N2O4 is 1 N2O4 in the balanced equation.

∴ the correct exponent for N2O4 in the equilibrium constant expression is 1

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3 years ago

During the first half of the 20th century, the theory of plate tectonics was developed. Evidence supporting this theory included

Makovka662 [10]

A) GPS monitoring and satellite imagery of crustal movements

Explanation:

The most recent evidence supporting the theory of plate tectonics is the use of GPS monitoring and satellite imagery of crustal movements.

GPS denotes Global Positioning Systems.

Satellite imagery is a recent advancement in the study of moving plates.

The global positioning system uses the position of a system of satellites in space to delineate positions on earth.
It works on the principles of triangulation and this helps to fix positions of objects on the earth surface.
With this, the change in position of the plates can be recorded by known fixed positions of objects.
Satellite imagery helps to map changes in terrain with time.
Images can be correlated through time and the shift in terrains delineated.

learn more:

Wegener brainly.com/question/5002949

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5 0

2 years ago

When part of earths surface is tilted towards the sun what does it cause

Furkat [3]

Summer Solstice is what happens when part of the Earth's surface is tilted towards the sun..

7 0

2 years ago

Read 2 more answers

Why would an increase in temperatures be detrimental to the tundra? Select all that apply.

ludmilkaskok [199]

Answer:

I think the answers are... b, d, and maybe a. I don't know for sure. So only put these answers in if you trust me!

Explanation:

I had this very question, and I put in what I think were the answers.

3 0

1 year ago

Define natural gas, liquefied petroleum gas (LPG), and liquefied natural gas (LNG). What three countries have most of the world’

mrs_skeptik [129]

Answer:

The answer is treated below.

Explanation:

Natural gas: Natural gas is not used in its pure form; it is processed and converted into cleaner fuel for consumption. It is a fossil fuel composed almost entirely of methane, but contain small amounts of other gases, including ethane, propane, pentane and butane. It is a combustible, gaseous mixture of simple hydrocarbon compounds, usually found in deep underground reservoirs formed by porous rock. Natural gas is mainly used as fuel for generating heat and electricity.

Liquefied petroleum gas (LPG): Liquefied Petroleum Gas is a byproduct of natural gas and oil extraction and crude oil refining . At room temperature, liquefied petroleum gas is a colourless and odourless gas which consists generally of butane (C4H10) or propane (C3H8) or a mixture of both.

Liquefied natural gas (LNG): Is natural gas that has been liquefied for ease of transport or storage. It is refrigerated to a very low temperature (-162 Celsius). At this temperature it becomes an odourless, non-toxic liquid that can be safely transported over long distances.

Three countries that have most of the world’s natural gas reserves

Russia
Iran
Qatar

Major advantages of using conventional natural gas as an energy resource:

It is less expensive when compared to other fossil fuels.
It is safer and easier to store when compared to other fossil fuels

Major disadvantages of using conventional natural gas as an energy resource:

It costs more to recover the remaining natural gas because of flow, access, etc.
It is not a renewable source.
it is a combustible material, It must be handled with care.
It does not contribute to greenhouse gases.

Three sources of unconventional natural gas :

Tight Gas
Shale Gas
Coalbed Methane

Major problems related to the use of Tight Gas

When Hydrofluoric acid is used to release tight gas in reserves it potentially an issue simply because the substance is so dangerous. A spill or a leak could harm workers and pollute groundwater for uses.

Major problems related to the use of Shale Gas

Risk of ground and surface water contamination.
Have impacts on air quality.

Major problems related to the use of Coalbed Methane

The development of coalbed methane will result to soil disturbance from construction of wells, roads, and the associated pipeline and electric power rights-of-ways.
It has impact on wildlife.

8 0

2 years ago