SC.912.L.17.20 Predict the impact of individuals on environmental

SC.912.L.17.20 Predict the impact of individuals on environmental

SC.912.L.17.20 Predict the impact of individuals on environmental systems, and examine how human lifestyles affect sustainability. Essential Question: How is the environment affected by human needs and wants? Bell Ringer New fuels are being produced by converting corn and

grasses into compounds containing alcohols that can be broken down for energy in various engines. The purpose of this research is to A. reduce the use of nonrenewable resources. B. increase the rate of air pollution. C. reduce the rate of homeostasis in organisms. D. cause a loss of biodiversity in the rain forests. Bell Ringer Salt water is an abundant resource but is unusable for irrigation and drinking. As demands on freshwater sources increase, the use of desalination processes to remove salt from ocean water is increasing. A concern of desalinating water is the large

amounts of recovered salts that are returned to the ocean. Which of the following describes the most likely impact of desalination on the surrounding ocean environment? A. Methane gas would pollute the ocean environment as shoreline organisms begin to die and decay. B. Alteration in ocean salt levels would cause loss of species and unbalanced populations in marine food webs. C. Nonrenewable resources in the ocean environment would become depleted and upset the ecosystems balance. D. Increased levels of salts and minerals in the ocean would result in overpopulation of marine bivalves due to strengthened shells.

Human Impact on the Environment Production of materials for desired items use natural resources More affluent societies use greater amounts of resources than more ones. They will have a larger ecological footprint (amount of land needed to supply resources and store wastes). Increase in energy consumption Greater use of raw materials Human Impact on the Environment Poor societies have a different effect on the

environment: Overuse of land depletes soil Limited sanitation can contaminate water supply More land is needed for survival negative effects Deforestation clear cutting of trees Soil erosion Human Impact on the Environment Other negative consequences from human influence: Building construction clears land and

reduces natural habitats and biodiversity Energy needs reduce nonrenewable resources such as oil and coal; impact on climate change and global warming Mining of raw materials destroys land Manufacturing and increased dependence on cars pollutes air and water Sustainable Practices Sustainable agriculture use of smaller amounts of pesticides, fertilizers, water, and energy during food production Buying local produces reduces energy needed

to bring food to markets Recycling programs reduce use of petroleum, water, wood, and nonrenewable resources Sustainable Practices Sustainable forestry planting of replacement trees and federal government protection of certain wildlife areas Use of more efficient and alternative energy practices Urban planning use of mass transportation, green buildings, and adding parks and open spaces

We Do The Lorax Read the summary of The Lorax. On the left side of your journal, list 5 ways that the Once-lers actions affected the local environment or others living there Describe 1 way that to improve the area after the Truffula trees were gone (a sustainable practice). Bell Ringer New fuels are being produced by converting corn and grasses into compounds containing alcohols that can

be broken down for energy in various engines. The purpose of this research is to A. reduce the use of nonrenewable resources. B. increase the rate of air pollution. C. reduce the rate of homeostasis in organisms. D. cause a loss of biodiversity in the rain forests. Bell Ringer Salt water is an abundant resource but is unusable for irrigation and drinking. As demands on freshwater sources increase, the use of desalination processes to remove salt from ocean water is increasing. A concern of desalinating water is the large amounts of recovered salts that are returned to the ocean.

Which of the following describes the most likely impact of desalination on the surrounding ocean environment? A. Methane gas would pollute the ocean environment as shoreline organisms begin to die and decay. B. Alteration in ocean salt levels would cause loss of species and unbalanced populations in marine food webs. C. Nonrenewable resources in the ocean environment would become depleted and upset the ecosystems balance. D. Increased levels of salts and minerals in the ocean would result in overpopulation of marine bivalves due to strengthened shells. EXIT SLIP

WHALING WAS A VERY PROFITABLE PROFESSION UNTIL WHALE POPULATIONS CRASHED. THE GLOBAL COMMUNITY CAME TOGETHER TO ENACT A BAN ON WHALING. HOWEVER, JAPAN AND NORWAY HAVE NOT AGREED TO STOP WHALING. WHICH OF THE FOLLOWING IS THE MOST LIKELY CONSEQUENCE OF THEIR DECISION? A. THE WHALE POPULATIONS ARE BOUNCING BACK VERY SUCCESSFULLY AND ARE UNAFFECTED BY JAPAN AND NORWAY CONTINUING TO WHALE. B. THE WHALE POPULATIONS ARE NOT REBOUNDING AS QUICKLY AS THEY MIGHT IF ALL OF THE COUNTRIES AGREED NOT TO HUNT WHALES. C. THE WHALE POPULATIONS HAVE MUTATED INTO NEW KINDS OF ORGANISMS.

EXIT SLIP WHEN FERTILIZERS RUN OFF FARMLAND INTO STREAMS AND PONDS, THE NITROGEN CONTENT OF THE WATER INCREASES. THIS CAN LEAD TO RAPID GROWTH OF ALGAE IN A PROCESS CALLED EUTROPHICATION. HOW CAN THIS PROCESS AFFECT OTHER ORGANISMS IN THE WATER? A. OXYGEN IS USED UP AS ALGAE IS DECOMPOSED, REDUCING THE AMOUNT AVAILABLE TO OTHER ORGANISMS. B. THE WATER BECOMES BETTER ABLE TO SUPPORT AEROBIC ORGANISMS. C. THE ALGAE PROVIDE FOOD FOR FISHES AND OTHER ORGANISMS, LEADING TO DECREASED ALGAE POPULATIONS.

D. THE EXTRA NITROGEN PROVIDES ADDITIONAL FOOD FOR THE OTHER ORGANISMS, INCREASING THEIR POPULATION. EXIT SLIP DDT AND OTHER PESTICIDES USED OVER 50 YEARS AGO ARE STILL AFFECTING THE ENVIRONMENT TODAY. SCIENTISTS HAVE FOUND THESE SUBSTANCES IN RECENT GLACIER RUNOFF. GLACIER RUNOFF OCCURS DURING THE SUMMER, WHEN PRECIPITATION THAT HAS FALLEN ON GLACIERS DURING THE WINTER IS RELEASED. ICE LAYERS FROM EXISTING GLACIERS HAVE BEEN ANALYZED. THE RESULTS OF THIS ANALYSIS SHOW THAT THE CONCENTRATIONS OF DDT AND OTHER PESTICIDES WERE HIGHEST ABOUT 10 YEARS AFTER THE USE OF THESE SUBSTANCES WAS BANNED.

THIS INFORMATION SHOWS THAT A. DDT AND OTHER PESTICIDES CAUSE GLACIER RUNOFF DURING THE SUMMER. B. IT TAKES HUMANS OVER 50 YEARS TO ANALYZE A GLACIER. C. PRECIPITATION HELPS TO BREAK DOWN PESTICIDES. D. THE DECISION OF ONE HUMAN GENERATION MAY HAVE AN

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