Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
22 Cards in this Set
- Front
- Back
natural resources |
anything that occurs naturally in the environment and is used by people |
|
pollution |
the contamination of Earth's land, water, or air |
|
point source |
specific pollution source that can be identified |
|
non-point source |
widely spread and cannot be tied to a specific origin |
|
enviromental science |
study of natural processes in the environment and how it can affect them |
|
renewable resource |
always available and is naturally replaces in a relatively short time |
|
nonrenweable resource |
resources that are not replaced in a useful timeframe |
|
sustainable resource |
using resources in a ways that maintain the resource of a certain quality for a certain period of time |
|
ecological footprint |
the amount of land and water that individuals use to meet their resource needs and absorb waste they produce |
|
conservation |
the practice of managing the use of resources wisely so the resources last longer |
|
exponential growth |
occurs when population grows at an ever-increasing rate |
|
biodiversity |
variety of different types of life found on Earth and variations within species |
|
keystone species |
a species that influences the survival of many other species in an ecosystem |
|
gene |
a sequence of DNA that determine a trait and is passed from parents to offspring |
|
extinction |
the disappearance of all members of a species from Earth |
|
endangered species |
a species in danger of becoming extinct in the near future |
|
threatened species |
a species that could become endangered in the near future |
|
habitat destruction |
the loss of a natural habitat |
|
habitat fragment |
the breaking of a habitat into smaller, isolated pieces |
|
poaching |
illegal killing or removal of wildlife from their habitats |
|
captive breeding |
the mating of animals in zoos or wildlife preserves |
|
niche |
a shallow recess |