ENVIRONMENTAL SCIENCE

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YASMIN APONZA JERSON ADRIAN GOMEZ JUAN FELIPE SUAREZ ROOSBELL CARABALI RONALD FELIPE ZUÑIGA

ENVIRONMENTAL SCIENCE

Enviromental science is a field of study focused on the Earth's environment and the resources it provides to all living organisms, including humans.

WORKING TOWARD A MORE SUSTAINABLE ENVIRONMENT

Environmental science is all about finding ways to live more sustainably; sustainability doesn’t mean living without luxuries, but rather being aware of your resource consumption and reducing unnecessary waste.

The following sustainability measures begin little by little with what can be done individually to take better care of the land

Conserving water.

Creating a sustainable economy

Taking steps toward smarter land use

Recycling.

-Eating locally

WHAT DEFINES AN ECOSYSTEM?

An ecosystem consists of a biological community and its physical environment.

La energía se mueve alrededor de un ecosistema a través de la red alimentaria.

An ecosystem recycles matter through the process of decomposition

All the biological processes in an ecosystem run on energy captured from the sun

It provides the organisms that live there with what they need to survive

An ecosystem can be large or small

HOW TO CHARACTERIZE A POPULATION OF LIVING THINGS?

Each population is formed by a group of individuals of the same species that occupy the same environment and interact with each other. The scientists use some common measures to characterize the populations:

Distribution: The distribution of a population indicates where the individuals are located across the environment they occupy.

Density: of a population is the number of individuals, in relation to the area they inhabit.

Sex ratio: es el número de hombres contra mujeres.

Age structure: describes how many individuals fall into different age classes.

Size: of a populación is the number of individuals that make it up.

LONG-TERM IMPACT OF THE KEY ENVIRONMENTAL LEGISLATION IN THE UNITED STATES.

In the decade of 1970, the Congress of the EE. UU It passed a series of important laws to repair environmental damage and protect the environment from further pollution. Here some of the laws.

National Forest Management Act of 1976: considers that the extraction of wood affects the ecosystem as a whole.

Safe Drinking Water Act of 1974: improve public health by protecting public supplies of drinking water from pollution.

Endangered Especies Act of 1973: establishes a process to legally recognize and seek the conservation of endangered species of plants and animals.

Clean Water Act of 1972: led to a dramatic improvement in water quality

Clean Air Act of 1970: This law was the first to regulate air pollution on a national scale and establish goals to improve air quality.