Environmental Conservation

Environmental Issues

• Recycling involves converting waste materials into new materials and objects to prevent waste of potentially useful resources.
• Household waste includes garbage, recyclable materials, and organic waste produced from household activities.
• Overuse of pesticides can harm the environment, wildlife, and human health.
• Deforestation results in habitat loss and environmental damage due to large-scale removal of forested areas.
• Urban development leads to changes in land use and infrastructure, causing expansion and growth of cities and towns.

Environmental Damage

• Ozone layer depletion occurs due to chemical pollutants, leading to increased UV radiation reaching the Earth's surface.
• Coral bleaching is caused by stress factors like increased water temperature, leading to the expulsion of symbiotic algae.
• Water contamination makes water unsafe for consumption and ecosystems due to the presence of harmful substances.
• Sewage is waste water and excrement conveyed in sewers, usually from households and industry.

Environmental Conservation

• Conservation involves protecting and preserving natural resources and the environment.
• Wildlife reserves are protected areas for the conservation of wild animals and their habitats.
• Biodegradable materials can be decomposed by bacteria or other living organisms, avoiding pollution.
• Recycling helps to prevent waste of potentially useful resources.

Human Impact

• To cause harm to means to damage or negatively impact someone or something.
• Devastation occurs when severe and widespread destruction or damage occurs.
• Famine is an extreme scarcity of food, causing widespread hunger and mortality.
• Starvation occurs when suffering or death is caused by lack of food.

Chemicals and Fuels

• Fossil fuels are natural fuels formed from the remains of ancient plants and animals.
• Carbon dioxide is a colorless, odorless gas produced by burning carbon-based fuels and by respiration, contributing to the greenhouse effect.

Waste Management

• Landfill sites are designated locations for the disposal of waste by burying it, typically involving layers of earth to cover the waste.
• To dump means to dispose of waste material in a careless or improper way.
• To discard means to throw away or get rid of something that is no longer needed.
• To use up means to consume all of something so that none remains.

Other Terms

• To breed means for animals or plants to reproduce and produce offspring.
• To devise a scheme means to plan or invent a method or strategy for achieving a particular goal.
• To deposit means to lay down or place something in a specific location, often in layers.
• Genetically modified organisms have their genetic material altered using genetic engineering techniques to introduce new traits.
• Sediment is particles of soil, sand, and minerals washed from land into water bodies, which can accumulate and affect water quality and ecosystems.