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State of our Earth

APES Studying the State of our Earth Chap 1

Fracking Hydraulic fracturing, a method of oil and gas extraction that uses high-pressure fluids to force open cracks in rocks deep underground.
Environment The sum of all the conditions surrounding us that influence life.
Environmental science The field of study that looks at interactions among human systems and those found in nature.
Ecosystem A particular location on Earth with interacting biotic and abiotic components.
Biotic Living.
Abiotic Nonliving.
Environmentalist A person who participates in environmentalism, a social movement that seeks to protect the environment through lobbying, activism, and education.
Environmental studies The field of study that includes environmental science and additional subjects such as environmental policy, economics, literature, and ethics.
Ecosystem services The processes by which life- supporting resources such as clean water, timber, fisheries, and agricultural crops are produced.
Environmental indicator An indicator that describes the current state of an environmental system.
Biodiversity The diversity of life forms in an environment.
Genetic diversity A measure of the genetic variation among individuals in a population.
Species A group of organisms that is distinct from other groups in its morphology (body form and structure), behavior, or biochemical properties.
Species diversity The number of species in a region or in a particular type of habitat.
Speciation The evolution of new species.
Background extinction rate The average rate at which species become extinct over the long term.
Greenhouse gases Gases in Earth’s atmosphere that trap heat near the surface.
Anthropogenic Derived from human activities.
Development Improvement in human well-being through economic advancement.
Sustainability Living on Earth in a way that allows humans to use its resources without depriving future generations of those resources.
Sustainable development Development that balances current human well-being and economic advancement with resource management for the benefit of future generations.
Biophilia Love of life.
Ecological footprint A measure of how much an individual consumes, expressed in area of land.
Scientific method An objective method to explore the natural world, draw inferences from it, and predict the outcome of certain events, processes, or changes.
Hypothesis A testable conjecture about how something works.
Null hypothesis A prediction that there is no difference between groups or conditions, or a statement or an idea that can be falsified, or proved wrong.
Replication The data collection procedure of taking repeated measurements.
Sample size (n) The number of times a measurement is replicated in data collection.
Accuracy How close a measured value is to the actual or true value.
Precision How close the repeated measurements of a sample are to one another.
Uncertainty An estimate of how much a measured or calculated value differs from a true value.
Theory A hypothesis that has been repeatedly tested and confirmed by multiple groups of researchers and has reached wide acceptance.
Control group In a scientific investigation, a group that experiences exactly the same conditions as the experimental group, except for the single variable under study.
Natural experiment A natural event that acts as an experimental treatment in an ecosystem.
Created by: rleffingwell



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