Pregunta 1
Pregunta 1 · D4Bloom: RememberDiscussion on conservation.
The preservation of natural resources for future generations is the core principle of sustainability.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: C) preservation
💡 Explicación
'Preservation' refers to the careful management and protection of resources to ensure they last.
Ver respuesta
Respuesta correcta: C) preservation
- A) exploitationIncorrect. Exploitation means using something for benefit.
- B) destructionIncorrect. Destruction is the opposite.
- C) preservationCorrect. Preservation is the act of keeping something as it is.
- D) consumptionIncorrect. Consumption means using something up.
💡 Explicación
'Preservation' refers to the careful management and protection of resources to ensure they last.
Pregunta 2
Pregunta 2 · D4Bloom: UnderstandDescribing an ongoing environmental process.
Species are disappearing at an alarming rate due to habitat loss and climate change.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: B) are disappearing
💡 Explicación
The present continuous 'are disappearing' emphasizes that this is a current and ongoing phenomenon.
Ver respuesta
Respuesta correcta: B) are disappearing
- A) disappearIncorrect. Present simple.
- B) are disappearingCorrect. Present continuous for an ongoing trend.
- C) have disappearedIncorrect. Present perfect.
- D) will disappearIncorrect. Simple future.
💡 Explicación
The present continuous 'are disappearing' emphasizes that this is a current and ongoing phenomenon.
Pregunta 3
Pregunta 3 · D4Bloom: ApplyTalking about past environmental damage.
If we had acted sooner, we could have prevented much of the damage to the ozone layer.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: D) had acted
💡 Explicación
The third conditional (if + past perfect) describes an alternative past that did not happen.
Ver respuesta
Respuesta correcta: D) had acted
- A) actedIncorrect. Second conditional.
- B) actIncorrect. Present tense.
- C) would actIncorrect. 'Would' is not used in the 'if' clause.
- D) had actedCorrect. Third conditional for hypothetical past situations.
💡 Explicación
The third conditional (if + past perfect) describes an alternative past that did not happen.
Pregunta 4
Pregunta 4 · D4Bloom: AnalyzeText about "greenwashing".
Greenwashing occurs when a company spends more time on marketing itself as environmentally friendly than on actually minimizing its impact.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: C) greenwashing
💡 Explicación
'Greenwashing' is the specific term for misleading consumers regarding the environmental practices of a company.
Ver respuesta
Respuesta correcta: C) greenwashing
- A) recyclingIncorrect. Recycling is a real environmental action.
- B) reforestationIncorrect. Reforestation is planting trees.
- C) greenwashingCorrect. Greenwashing is deceptive environmental marketing.
- D) compostingIncorrect. Composting is recycling organic waste.
💡 Explicación
'Greenwashing' is the specific term for misleading consumers regarding the environmental practices of a company.
Pregunta 5
Pregunta 5 · D6Bloom: EvaluateDiscussion on the "plastic crisis".
The primary challenge in managing plastic waste is its persistence in the environment.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: C) persistence
💡 Explicación
'Persistence' correctly describes the quality of plastic remaining in the environment without breaking down.
Ver respuesta
Respuesta correcta: C) persistence
- A) solubilityIncorrect. Solubility refers to dissolving.
- B) varietyIncorrect. Variety refers to diversity.
- C) persistenceCorrect. Persistence refers to the ability to remain for a long time.
- D) weightIncorrect. Weight is not the main problem.
💡 Explicación
'Persistence' correctly describes the quality of plastic remaining in the environment without breaking down.
Pregunta 6
Pregunta 6 · D6Bloom: RememberDescribing renewable energy.
Solar panels convert sunlight into electricity, providing a clean source of power.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: C) electricity
💡 Explicación
The primary function of photovoltaic solar panels is to generate electricity.
Ver respuesta
Respuesta correcta: C) electricity
- A) fuelIncorrect. Fuel usually refers to combustibles.
- B) heatIncorrect. While related, electricity is the main discussion.
- C) electricityCorrect. Solar panels produce electrical energy.
- D) gasIncorrect. Gas is a different source.
💡 Explicación
The primary function of photovoltaic solar panels is to generate electricity.
Pregunta 7
Pregunta 7 · D6Bloom: UnderstandRecommendation for water conservation.
It is essential that we reduce our water consumption to prepare for future droughts.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: C) reduce
💡 Explicación
'Reduce' is the base form used in the subjunctive mood to express necessity.
Ver respuesta
Respuesta correcta: C) reduce
- A) reducesIncorrect. Third person singular.
- B) to reduceIncorrect. Infinitive doesn't fit here.
- C) reduceCorrect. Subjunctive form after 'It is essential that...'.
- D) reducingIncorrect. Gerund doesn't fit here.
💡 Explicación
'Reduce' is the base form used in the subjunctive mood to express necessity.
Pregunta 8
Pregunta 8 · D6Bloom: ApplyText on urban planning.
Urban sprawl often leads to the destruction of natural habitats and increased reliance on automobiles.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: C) sprawl
💡 Explicación
'Urban sprawl' describes the outward growth of cities into rural areas.
Ver respuesta
Respuesta correcta: C) sprawl
- A) rejuvenationIncorrect. Rejuvenation means making something young again.
- B) densityIncorrect. Density refers to compact building.
- C) sprawlCorrect. Urban sprawl is the expansion of cities.
- D) forestryIncorrect. Forestry is about managing forests.
💡 Explicación
'Urban sprawl' describes the outward growth of cities into rural areas.
Pregunta 9
Pregunta 9 · D6Bloom: AnalyzeDescribing a past habit.
Years ago, people used to throw away much more waste than we do now.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: D) used to
💡 Explicación
'Used to' is the appropriate structure for describing a past habit or state that has changed.
Ver respuesta
Respuesta correcta: D) used to
- A) use toIncorrect. Needs 'used' for past habits.
- B) wouldIncorrect. 'Used to' is better for states.
- C) are used toIncorrect. This means 'accustomed to'.
- D) used toCorrect. 'Used to' describes past habits.
💡 Explicación
'Used to' is the appropriate structure for describing a past habit or state that has changed.
Pregunta 10
Pregunta 10 · D6Bloom: EvaluateCritique of the "throwaway culture".
The "throwaway culture" refers to a society that prioritizes convenience over the environmental cost.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: C) convenience
💡 Explicación
'Convenience' is the primary driver of the consumption of single-use products.
Ver respuesta
Respuesta correcta: C) convenience
- A) economyIncorrect. While related, convenience is the focus.
- B) traditionIncorrect. Modern phenomenon.
- C) convenienceCorrect. Desired for easy, one-time use.
- D) safetyIncorrect. General culture is about ease.
💡 Explicación
'Convenience' is the primary driver of the consumption of single-use products.
Pregunta 11
Pregunta 11 · D8Bloom: RememberEnvironmental legislation.
An endangered species is a type of organism which is at risk of extinction.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: C) endangered
💡 Explicación
'Endangered' is the formal status for species close to being lost.
Ver respuesta
Respuesta correcta: C) endangered
- A) invasiveIncorrect. Invasive species cause harm.
- B) extinctIncorrect. Extinct species are gone.
- C) endangeredCorrect. Endangered means at risk.
- D) resilientIncorrect. Resilient means able to recover.
💡 Explicación
'Endangered' is the formal status for species close to being lost.
Pregunta 12
Pregunta 12 · D8Bloom: UnderstandPassive voice in an ecology report.
Vast areas of the rainforest are being cleared to make way for agriculture.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: C) are being cleared
💡 Explicación
The present continuous passive 'are being cleared' describes the current destruction.
Ver respuesta
Respuesta correcta: C) are being cleared
- A) are clearing'Are clearing' is the active voice and would make the areas do the clearing; the areas are the ones being cleared.
- B) cleared'Cleared' on its own would be past simple, but the clearing is happening now, not in the past.
- C) are being clearedCorrect. 'Are being cleared' is the present continuous passive, used here for the destruction that is happening right now.
- D) have cleared'Have cleared' is the Present Perfect active, which would need the subject to perform the action.
💡 Explicación
The present continuous passive 'are being cleared' describes the current destruction.
Pregunta 13
Pregunta 13 · D8Bloom: ApplyDiscussing climate mitigation.
Reforestation projects help to sequester carbon from the atmosphere.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: A) sequester
💡 Explicación
'Sequester' is the technical term for the absorption and storage of carbon dioxide.
Ver respuesta
Respuesta correcta: A) sequester
- A) sequesterCorrect. To sequester means to store carbon.
- B) releaseIncorrect. Releasing carbon is bad.
- C) ignoreIncorrect. Trees don't ignore carbon.
- D) manufactureIncorrect. Trees absorb it.
💡 Explicación
'Sequester' is the technical term for the absorption and storage of carbon dioxide.
Pregunta 14
Pregunta 14 · D8Bloom: AnalyzeConditional about policy change.
If the government imposed higher taxes on carbon, companies would likely invest more in clean energy.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: D) imposed
💡 Explicación
The second conditional is used to describe a hypothetical scenario and its likely outcome.
Ver respuesta
Respuesta correcta: D) imposed
- A) imposesIncorrect. First conditional.
- B) had imposedIncorrect. Third conditional.
- C) would imposeIncorrect. 'Would' not used in 'if' clause.
- D) imposedCorrect. Second conditional for hypothetical policy.
💡 Explicación
The second conditional is used to describe a hypothetical scenario and its likely outcome.
Pregunta 15
Pregunta 15 · D8Bloom: EvaluateConclusion of a study on marine biology.
The study concludes that unless we address acidification, coral reefs will face collapse.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: A) unless
💡 Explicación
'Unless' sets the condition that collapse is inevitable if acidification is not addressed.
Ver respuesta
Respuesta correcta: A) unless
- A) unlessCorrect. 'Unless' means 'if not'.
- B) ifIncorrect. Collapse happens if we don't fix it.
- C) althoughIncorrect. Expresses contrast.
- D) providedIncorrect. 'Provided' means 'if'.
💡 Explicación
'Unless' sets the condition that collapse is inevitable if acidification is not addressed.
Pregunta 16
Pregunta 16 · D8Bloom: RememberWaste management.
Biodegradable materials can be broken down by bacteria.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: D) Biodegradable
💡 Explicación
'Biodegradable' is the property of substances that decompose naturally.
Ver respuesta
Respuesta correcta: D) Biodegradable
- A) SyntheticIncorrect. Often not biodegradable.
- B) PermanentIncorrect. Lasts forever.
- C) HazardousIncorrect. Means dangerous.
- D) BiodegradableCorrect. Capable of being decomposed.
💡 Explicación
'Biodegradable' is the property of substances that decompose naturally.
Pregunta 17
Pregunta 17 · D10Bloom: UnderstandSpeculating about the arctic.
By 2040, the Arctic Ocean might be ice-free during the summer.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: B) might be
💡 Explicación
'Might' is appropriate for expressing a scientific projection with uncertainty.
Ver respuesta
Respuesta correcta: B) might be
- A) isIncorrect. Present simple.
- B) might beCorrect. Expresses possibility.
- C) wasIncorrect. Past tense.
- D) will have beenIncorrect. Future perfect.
💡 Explicación
'Might' is appropriate for expressing a scientific projection with uncertainty.
Pregunta 18
Pregunta 18 · D10Bloom: ApplyText about the "carbon cycle".
The burning of fossil fuels releases large amounts of carbon dioxide.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: B) releases
💡 Explicación
'Releases' correctly describes how carbon stored in fossil fuels is emitted.
Ver respuesta
Respuesta correcta: B) releases
- A) absorbsIncorrect. Burning releases.
- B) releasesCorrect. Set free or allow to escape.
- C) createsIncorrect. Carbon was already there.
- D) destroysIncorrect. Carbon cannot be destroyed.
💡 Explicación
'Releases' correctly describes how carbon stored in fossil fuels is emitted.
Pregunta 19
Pregunta 19 · D10Bloom: AnalyzeReporting a scientist's warning.
The scientist warned that the effects of climate change were becoming irreversible.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: B) were becoming
💡 Explicación
In reported speech, we backshift tenses: 'are becoming' becomes 'were becoming'.
Ver respuesta
Respuesta correcta: B) were becoming
- A) are becomingIncorrect. Doesn't match 'warned'.
- B) were becomingCorrect. Backshifting from 'are' to 'were'.
- C) have becomeIncorrect. Present perfect.
- D) will becomeIncorrect. Future tense.
💡 Explicación
In reported speech, we backshift tenses: 'are becoming' becomes 'were becoming'.
Pregunta 20
Pregunta 20 · D10Bloom: EvaluateFinal thought on environmental ethics.
Sustainability requires a fundamental shift in how we perceive our relationship with nature.
Elige una opción para comprobar tu respuesta.
Respuesta correcta: C) perceive
💡 Explicación
'Perceive' refers to the mental perspective that must change.
Ver respuesta
Respuesta correcta: C) perceive
- A) ignoreIncorrect. Won't lead to sustainability.
- B) exploitIncorrect. Opposite of sustainability.
- C) perceiveCorrect. Conscious of something.
- D) destroyIncorrect. Not part of sustainability.
💡 Explicación
'Perceive' refers to the mental perspective that must change.