broken down by living organisms
- carbon-neutral: zero or balanced carbon dioxide emission
- zero-emission: no harmful gases
- ecological: connection between animals, plants, humans, and environment
- free-range: farming with freedom for animals and birds
- to contaminate: making organic waste into a soil-improving mixture
- to compost: decaying organic matter
- to dump: unorganized waste disposal
- to refine: removing unwanted substances
- to reuse: using something again for a different purpose
- conservationist: protecting environment and wildlife
- eco-anxiety: worry about the environment's state
- disposal: getting rid of waste
- dumper: truck for waste disposal
- logging: cutting trees for wood
- carbon monoxide: poisonous gas from fossil fuels
- microplastic: small plastic pieces in the environment
- pylon: metal structure for power lines
- ozone layer: protective layer from UV radiation
- reactor: machine for nuclear energy
- hydroelectricity: electricity from water power
- solar cell: converting sun energy into electricity
- sanctuary: protected area for birds and animals
- wildfire: fast-spreading destructive fire
- tidal wave: large ocean wave from storms or earthquakes
- herbicide: chemical killing plants
- pollutant: harmful substance to the environment
- to die out: ceasing to exist
- rot: destruction via natural causes
- oil rig: facility for drilling oil or gas
- acid rain: harmful rainfall from pollution
- typhoon: tropical storm in the Indian or western Pacific oceans
- leach: draining away soluble chemicals or minerals
SCIENCE:
- atomic: related to atoms
- nucleus: part of a cell with genetic information
- bond: force holding atoms or ions together
- charge: physical property causing force in electromagnetic fields
- density: compactness of a substance
- gravity: universal force of attraction
- particle: smallest units of energy or matter
- property: feature or quality of something
- instinct: innate reaction or behavior
- metabolism: chemical processes for energy
- evolutionary: related to slow development
- organic: produced by or from living things
- evolution: slow development of living things
- genome: complete genetic material
- mutation: change in gene structure
- embryo: developing offspring
- hybrid: animal or plant with different breed parents
- clone: genetically identical cells
- to reproduce: producing offspring
- stimulus: encouraging activity or reaction
- synthesis: producing substances in living beings
- to accelerate: increasing velocity
- to dissolve: becoming one with a liquid
- acid: chemical substance with sour taste or corrosive feature
- aluminum: light metal for cooking equipment and aircraft
- copper: metallic element for conducting
- lead: heavy soft metal for bullets and plumbing
- conductor: substance permitting heat or electricity
- crystal: naturally formed solid substance
- gunpowder: explosive powder
- dynamite: powerful explosive
- composition: elements forming something
- to emit: releasing heat, light, sound, or radiation
- ray: narrow beam of energy
- laser: device producing a powerful beam of light
- magnet: object producing a magnetic field
- thermal: related to heat or temperature
- to compress: pressing together to become smaller
- generator: machine producing electricity from mechanical energy