The document discusses several major problems facing the world due to human activity and the use of passive voice: 1) Pollution and climate change are being caused by the rising human population which has tripled over the last 60 years and saturated the planet, making other environmental issues more complicated. 2) Biodiversity loss is being caused by human destruction of species habitats which disrupts food chains and ecosystems, contributing to a potential 6th mass extinction. 3) Soil, water, and air are being contaminated by chemicals from industry and vehicles that take years to dissolve, such as metals, nitrates, and plastics. 4) The erosion of the ozone layer has been attributed to chlor

1. MIGUEL ACEVEDO REYES INGLES V
Carrera: Mantenimiento Industrial.
Tema:
Problemstheworldusingpassivevoice
Grado: 5to cuatrimestre Grupo “B”.
Maestro: Luz María Juárez Dávila.
Alumno: Miguel Acevedo Reyes

2. MIGUEL ACEVEDO REYES INGLES V
1. Pollutionisbeingcausedbythehighpopulationincrease.
Allothermajorproblemsarisefromthefactthatwe are
saturatingtheplanet. Thepopulation has tripled in thelast 60 years,
making more complicatedtheotheraspects of theenvironment. In 1950
therewere 2,555,982,611 and in 2012 are more than
7,000,000,000.The numberkeepsgrowing as youread!
2. Climatechangeisbeingcausedbyman'salterationswe'repastthepoint of
inflaxioniewe can not reverse thedamage.
3. BiodiversityLoss:Human behavior has destroyed and
continuestodestroydailyspecieshabitat. Whenexterminateone,
thereisanimmediateeffectonthefoodchain, which in
turnaffectinterdependentecosystems.
Thecatastrophiceffect of thisloss of
biodiversityislikelytoaffecttheplanetformillions of years, thisiscalled
"The 6th extinction."
4. Soil, water and air are
contaminatedbychemicalsthattakeyearstodissolve. Most of
thesechemicals are a result of ourlifestyle and are createdbyindustry

3. MIGUEL ACEVEDO REYES INGLES V
and motor vehicles. Some of themostcommontoxicmetals, nitrates and
plastics.
5. Theerosion of the ozone layer has beenattributedtothepresence of
chlorine and bromine in the air once thechemicalsreachtheatmosphere
cause ozone moleculesseparate and form a hole,
thelargestisontheAntarctic. A single chlorineatom can break up to 10
000 molecules of ozone. To reduce thisprocess,
havebannedcertainchemicals in manufacturingprocesses.
6. Phosphorus and nitrogencycles are beingproducedtothe use and abuse
of nitrogenbythe human race has resulted in a technologyvery
beneficial toourspecies: Eachyear, weconvertedapproximately 120
milliontons of nitrogenfromtheatmosphereinto reactive forms as
nitratesfortheproduction of fertilizerorfoodadditives.
Plantationwastetotheoceans and have a
negativeeffectonphytoplankton, whichisresponsibleforproducingmuch
of theoxygen.