BiodiversityThe variety of all living things in an area — plants, animals, fungi, and microorganisms. More biodiversity means a healthier ecosystem.EcosystemA community of living organisms (plants, animals, microbes) together with their physical environment, all interacting as a system.SustainabilityMeeting today's needs without compromising the ability of future generations to meet their own needs.RenewableAn energy source that is naturally replenished — solar, wind, water, and geothermal. Unlike fossil fuels, they won't run out.CarbonA chemical element (C) that is the basis of all life. In environmental contexts, usually refers to carbon dioxide (CO₂) emissions.DeforestationClearing forests for agriculture, logging, or development. Causes habitat loss, soil erosion, and increases carbon dioxide in the atmosphere.ConservationThe protection and careful management of natural resources and wildlife to prevent exploitation, destruction, or neglect.EmissionThe release of gases (especially greenhouse gases like CO₂ and methane) into the atmosphere, primarily from burning fossil fuels.OrganicIn farming, it means grown without synthetic chemicals. In chemistry, it means containing carbon. Both meanings relate to living things.HabitatThe natural home or environment of an animal, plant, or other organism. Habitat loss is the biggest threat to wildlife. 