1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mars2501 [29]
3 years ago
14

How does classifying the components of air help us to solve the air quality crisis

Chemistry
1 answer:
Lubov Fominskaja [6]3 years ago
4 0

Air pollution is

1. Coal

Herder and Sheep in Central Java. © Kemal Jufri / Greenpeace

A shepherdess watches over her flock of sheep that graze near a coal power plant in Jepara, Central Java, Indonesia. © Kemal Jufri / Greenpeace

Burning all fossil fuels is bad, but coal is the worst. When burnt, it releases more carbon dioxide (CO2) per unit of energy than oil or gas – which means it heats up our planet faster.

Coal is toxic too. Burning it releases elements like mercury and arsenic, and small particles of soot which contribute to air pollution. When we breathe it in, that soot harms our heart and lungs and even increases our risk of strokes.

But the worst thing about coal is how widespread it is. Coal provides more than a third of the world’s electricity. That’s more than any other single source! These power plants affect air quality for hundreds of kilometres – and are often placed right in the heart of cities – so countless millions of people get little respite from the pollution these plants cause.

We desperately need to wean ourselves off coal, and get our power from clean sources like wind, sun and tides.

Some counties have started. In 2019, coal power had its biggest slump ever recorded! But we need every country in the world to move much faster towards renewable energy. Greenpeace International has even mapped out how they could go about

Air pollution is indeed a crisis, but it’s a crisis we can solve – and around the world, people are solving it! Here’s what that looks like.

1. Coal

Coal is toxic too. Burning it releases elements like mercury and arsenic, and small particles of soot which contribute to air pollution. When we breathe it in, that soot harms our heart and lungs and even increases our risk of strokes.

But the worst thing about coal is how widespread it is. Coal provides more than a third of the world’s electricity. That’s more than any other single source! These power plants affect air quality for hundreds of kilometres – and are often placed right in the heart of cities – so countless millions of people get little respite from the pollution these plants cause.

We desperately need to wean ourselves off coal, and get our power from clean sources like wind, sun and tides

2. Cars

Most cars run on oil – petrol and diesel. And just like burning coal, burning oil comes with a huge environmental price tag. Petrol and diesel cars emit CO2 and other gases which heat our planet. On top of other nasties, the exhaust fumes these cars produce contain Nitrogen Dioxide (NO2), which is another pollutant that harms our health.

Cities around the world are waking up to the joys of car-free travel. From pedestrian zones, to proper public infrastructure to comprehensive and affordable public transport, there are so many ways cities can help us go car-free more often. And the benefits are many – from more space and cleaner air to a more active and healthy population.

But for those journeys that still need cars, we should start thinking about cars very differently. Rather than petrol and diesel, we should power cars with electricity.

3. Air pollution is no match for all of us, working together. All the solutions listed here are already happening around the world because people came together and demanded it.

Concerns about air pollution made Shenzhen, China electrify their bus fleet. Parents in Belgium mobilised because the air in schools was so dirty. Now, Brussels, its capital city, is banning petrol and diesel cars from 2030 and investing in public transport and cycling infrastructure. And around the world, concerns about the climate impacts of coal are causing governments to look into new ways of getting their power- Turkey has closed five coal power plants in 2020 alone!

You might be interested in
Blank occur blank blank molecules?
oksian1 [2.3K]

Answer:

Reactions occur when two or more molecules interact.

Explanation:

SCIENCE

3 0
3 years ago
Calculate the moles of Cu in 7.4×1021 atoms of Cu.
IceJOKER [234]
1 moles -------- 6.02x10²³ atoms
 ?? moles ----- 7.4x10²¹ atoms

moles = 7.4x10²¹ / 6.02x10²³

 = 0.01229 moles

hope this helps!
5 0
4 years ago
Is pencil lead a conductor or insulator?
Airida [17]

Answer:

Conductor

Explanation:

What we call “pencil lead” is actually a substance called graphite, which consists of many stacked sheets of carbon atoms. Like a metal, graphite is conductive and therefore can act like a wire on paper to create the circuit.

7 0
3 years ago
Different isotopes are matched with their uses as (i) Co- 60- To treat cancer (ii) U- 238- To produce electricity (iii) I-131- T
navik [9.2K]

Answer:

I-131- To treat goitre

U- 238- To produce electricity

(ii) (ii) and (iii)

Explanation:

Radioisotopes have various applications in science. These applications may be positive or negative.

I-131- is used to treat goitre. This is a very important medical application of this isotope of iodine.

U-238 is ordinarily non-fissile but can be transformed to Pu-239 and used as a nuclear fuel for electricity generation.

8 0
3 years ago
A sample of propane, C3H8, occupies 1.73 mL when the pressure is 320 torr at 30 C. What is the volume at STP
hammer [34]

The volume of the sample of propane at STP is 0.62 mL.

<h3>What is volume?</h3>

Volume is the amount of space that a substance or object occupies.

To calculate the volume of gas at STP, we apply the formula below.

Formula:

  • PV/T = P'V'/T'................. Equation 1

Where:

  • P = Initial pressure of gas
  • V = Initial volume of gas
  • T = Initial temperature of gas
  • P' = Standard pressure (SP)
  • T' = Standard temperature (ST)
  • V' = Volume of gas at STP.

Make V' The subject of the equation

  • V' = PVT'/P'T.............. Equation 2

From the question,

Given:

  • P = 320 torr
  • V = 1.73 mL
  • T = 30 °C = (30+273) K = 303 K
  • P' = 760 torr
  • T' = 273 K

Substitute these values into equation 2

  • V' = (320×1.73×273)/(760×303)
  • V' = 0.62 mL

Hence, the volume of the sample of propane at STP is 0.62 mL.
Learn more about volume here: brainly.com/question/26507715

8 0
2 years ago
Other questions:
  • He partial lewis structure that follows is for a hydrocarbon molecule. in the full lewis structure, each carbon atom satisfies t
    15·2 answers
  • What's the difference between saturated and unsaturated fatty acids?
    6·1 answer
  • Which of the procedures, if either, is more accurate when making a 1/501/50 dilution of a solution? Transfer 1 mL1 mL with a pip
    9·1 answer
  • What are two stronger lights that ultraviolet?
    5·1 answer
  • Which of these statements is true about the temperature of a substance?
    7·1 answer
  • Rank the species CH2NH, CH3I, HF, C2H6 from most to least miscible in ammonia (NH3) 1. CH3I &gt; C2H6 &gt; HF &gt; CH2NH 2. CH2N
    12·1 answer
  • ILL MARK AS BRAINLIEST AND ILL GIVE 30 POINTS
    11·1 answer
  • Which of the following is the coldest climate zone?
    5·2 answers
  • I have made a thermometer which measures temperature by the compressing and expanding of gas in a piston. I have measured that a
    9·1 answer
  • A 1 l container contains O2 gas at stp. if the diameter of the O2 molecule is 3.75 * 10^-10 m the mean free path of the o2 molec
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!