The atmosphere is a layer of gases surrounding the Earth composed of 78% nitrogen, 21% oxygen, 0.9% argon, and 0.04% carbon dioxide. It protects life on Earth by absorbing ultraviolet light from the sun in the ozone layer and acting as a shield against meteorites. Pollution from sources like motor vehicles, coal burning, and industry introduce harmful gases and particles into the atmosphere. Actions like installing filters, using renewable energy, reducing energy consumption, and recycling can help make the atmosphere less polluted.

1. THE ATMOSPHERE
Created by Adrián, Pablo and Víctor

2. WHAT IS THE ATMOSPHERE?
The atmosphere is a layer of gases that surrounds the Earth.

3. WHAT IS THE COMPOSITION OF THE
ATMOSPHERE?
Its composition is approximately a 78% of nitrogen, a 21% of oxigen, a
0.9% of argon and a 0.04% of carbon dioxide.

4. TYPES OF POLLUTION
POLLUTANT SOURCE CONSEQUENCES
CARBON MONOXIDE
MOTOR VEHICLES AND
MACHINERY
VERY POISONOUS. EVEN LOW
CONCENTRATIONS ARE
DANGEROUS.
SULPHUR AND NITROGEN OXYGEN BURNING FUELS, ESPECIALLY COAL
IRRITANT, ACID RAIN, DAMAGES
MONUMENTS
“BAD” OZONE INDUSTRY, MOTOR VEHICLES
IRRITANT AND POISONOUS, GREY
CLOUDS, SMOG OVER CITIES.
SOOT
INDUSTRY, COAL HEATING
SYSTEMS, DIESEL ENGINES
TINY PARTICLES CAN PASS INTO
THE LUNGS AND EVEN INTO
BLOOD, CAUSE SERIOUS DAMAGE.

5. SOME IMPORTANT FUNCTIONS OF THE
ATMOSPHERE
The main function of the atmosphere is to protect all the live of the
Earth; but how the atmosphere do this:
- It do this absorbing the ultraviolet light produced in the
ozonosphere by the Sun.
- It also is a protective shield with the meteorites.
aA SHIELD MEANS ESCUDO

6. ENVIRONMENTAL ACTIONS FAVORABLE FOR
THE ATMOSPHERE
- Install filters at power stations and factories.
- Use renewable energy.
- Choose responsable energy consumption: The energy we use comes
mainly from power stations that pollute. So reducing energy
consumption is another way to reduce pollution.
- Recycle: using recycled materials (paper, plastics, glass, etc) in
manufacturing processes causes less pollution than producing new
materials.

7. EXAMPLES OF RESPONSABLE ENERGY AND REC YCLING
Responsable Energy Recycling

8. SOURCES
- The science book (Biology and Geology 1 of Santillana and
Richmond)
- Google translator
- Google images
- Book ( La Tierra of Aprender es facil)

9. ANY QUESTION?

10. END