Skip to content
SchoolWorkHelper
Your online site for school work help and homework help. Science, English, History, Civics, Art, Business, Law, Geography, all free!
SchoolWorkHelper
  • Science & Math
  • Sociology & Philosophy
  • Law & Politics
  • History
  • Business
  • English
  • Art
  • Science & Math
  • Sociology & Philosophy
  • Law & Politics
  • History
  • Business
  • English
  • Art

Tag Archives: pollution

You are here:
  1. Home
  2. Entries tagged with "pollution"

Pollution Indicator species: Lichen & Invertebrates

ScienceBy William Anderson (Schoolworkhelper Editorial Team)April 28, 2013Leave a comment

-A species of organism that can indicate an area of pollution by its presences or absence in that specific area. Lichen – How does it indicate air pollution? Lichen is a moss like plant that grows on exposed areas such as on rocks and on trees. Lichen relies on nutrients that it absorbs from rainwater…

Conservation Biology

ScienceBy William Anderson (Schoolworkhelper Editorial Team)December 23, 2011Leave a comment

As the human population has grown, and our use of resources has increased, we have destroyed the habitat of many species. A biodiversity crisis has developed. The Red List of Threatened Species, compiled by the World Conservation Union, lists 16,913 species as threatened with extinction. Conservation biology—the scientific study of phenomena that affect the maintenance,…

Photochemical Smog: History & Summary

ScienceBy William Anderson (Schoolworkhelper Editorial Team)June 4, 20116 Comments

Historically, the term smog referred to a mixture of smoke and fog, hence the name smog. The industrial revolution has been the central cause for the increase in pollutants in the atmosphere over the last three centuries. Before 1950, the majority of this pollution was created from the burning of coal for energy generation, space…

SchoolWorkHelper

St. Rosemary Institution © 2025

Go to Top
ATTENTION: Help us feed and clothe children with your old homework! We pay $$$ and it takes seconds!Earn Money
+