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Transcript
LT: Today I can apply scientific concepts to
understand environmental issues by analyzing the
author’s purpose in diagrams.
What are natural resources and what is the
difference between renewable and non-renewable
resources?
Natural Resource- Materials removed
from the Earth and used by people to
satisfy needs and wants.
All resources are put into one of two categories:
Non-Renewable
Renewable
Nonrenewable Resource- a resource that cannot be remade
or re-grown at a scale comparable to its consumption (use).
ie. It’s used faster than it can be remade.
Renewable Resource- a resource that can be replenished in a
short period of time.
Nonrenewable Resources
Resource
Examples of how it is used
Fossil
Fuels
Energy for
Homes
Cars
Factories
Nuclear energy
Uranium is
used
Is used for energy for
Homes
Cars
Factories
Minerals
Ex)
Copper
Gold
Iron
Minerals
are used
to make
goods
Renewable Resources
Resource
Examples of how it is
used
Solar
Heat energy for the Sun can
be converted and used for
Homes
Cars
Factories
Hydro
(water)
The mechanical energy from
water can be converted and
used for energy for
Homes
Cars
Factories
Wind
The mechanical energy from
wind can be converted and
used for energy for
Homes
Cars
Factories
Resource
Examples of how it is used
Geothermal
Heat energy for the Earth can be converted and
used for
Homes
Cars
Factories
Biomass
Organic (living) matter can be burned like
fossil fuels for the energy can be used for
Homes
Cars
Factories
Air Pollution
Source
Chemicals/
damage
Impact
Carbon
dioxide
(CO²),
Acid rain
Sulfur
dioxide,
Global warming
Nitrogen
oxides
Methane
Ozone depletion
Health issues to
humans and
other organisms
Air Pollution
Water Pollution
Sources
Chemicals
/damage
Impact
Fertilizers
Fertilizers increase
growth of green
plants such as algae
and breathable
oxygen is less
available for other
organisms.
Pesticides
Chemicals from
pesticides and
other agents
damage cells of
living things.
Toxic chemicals
(metals,
mercury, lead,
etc.)
Water Pollution
Water Pollution
How do pesticides and fertilizers from farms and
lawns, and oil and gas from parking lots and streets
get into the water sources?
Runoffmost land is above sea level.
Water runs from the
land to the water sources
Land (Soil) Pollution
Sources
Chemicals
/damage
Impact
Soil erosion and Soil erosion
depletion
(movement) and
depletion reduces
the ability of
producers to grow
Toxic chemicals
(metals,
mercury, lead,
etc.)
Chemicals from
pesticides and
other agents
damage cells of
living things.
Soil Pollution
Soil Pollution
Global Warming
Acid Rain
Ozone Layer Depletion
Part 3Ecosystem Disruption
Explain what it is
How does it affect the organisms in an
ecosystem?
Habitat Destruction
Organisms that live in the forest (and other It increases competition for food and space
areas) lose their homes due to the clearing which results in reduced populations.
of forests and woodland to make homes
Eventually leading to extinctions.
and buildings.
Loss of Biodiversity
Biodiversity is the various organisms
within an ecosystem. Loss of biodiversity
is the death of organisms and/or species.
The loss of life in an ecosystem disrupts
the balance of all lives within that
ecosystem. Organisms rely on other
organisms for food and population control.
Invasive Species
An organism that is introduced into an
ecosystem that it is not a native to.
This can disrupt the ecosystem because
the non-native species will not have
natural predators and its population can
increase to the point that it creates an
increase of competition for space and
food. This competition can lead to the
disruption and/or the extinction of other
species.
What are some of the ways to reduce human
impact on the environment?
Conservation (protecting) and Restoration (cleaning
up and restoring damaged habitats)
Reduce -reduce the amount of energy used and
waste produced
Reuse – reuse goods
Recycle- reusing natural resources by breaking them
down and using them to create other goods
Technology- provides cleaner energy sources, better ways to
deal with waste, and improved methods.
Renewable resources- the burning of fossil fuels results
in the release of the chemicals that lead to various types of
pollution (ex) acid rain, ozone depletion, global warming, etc.
Environmental AwarenessAdvocacy- people who fight for a solution.
Education- education leads to public support and
advocacy.
Planning for the FuturePlanning for future generations can help avoid damage to the
environment and help us solve environmental issues.