7. ECOLOGY
• study of organisms and
environment interacting with
one another.
COMPONENTS OF ENVIRONMENTAL SCIENCE
8. GEOSCIENCE
• “Study of the Earth”
• study of soil science,
volcanoes, and Earth’s crust
as they relate to the
environment.
COMPONENTS OF ENVIRONMENTAL SCIENCE
9. ATMOSPHERIC
SCIENCE
• study of Earth’s atmosphere,
analyzes the relation of the
Earth’s atmosphere to the
other systems.
COMPONENTS OF ENVIRONMENTAL SCIENCE
11. 1. Everything is connected to everyone else.
2. All life forms are important.
3. Everything must go somewhere.
4. Ours is a finite Earth.
5. Nature knows best.
6. Nature is beautiful, and we are stewards of God’s
creation.
7. Everything changes.
THE ECOLOGICAL PRINCIPES
12. ● Earth is an integrated
system made up of many parts
that interact with each other.
● Though these parts are
unique and very different from
one another, they are,
nonetheless, interconnected.
EARTH AS SYSTEM
13. LITHOSPHERE
• also called “geosphere”,
composed of all planet’s rock,
soil, and minerals.
• includes also molten rock in the
Earth’s interior.
• about 100km thick.
FOUR SYSTEMS THAT MAKE UP THE EARTH
14. HYDROSPHERE
• contains all of the Earth’s water in all of its phases (solid, liquid, and
gaseous)
• Composed of saltwater, freshwater, glaciers, the permafrost, and the
moisture in the atmosphere.
• Covers about 70% of the Earth’s surface.
• Only about 1% is available as fresh surface water-rivers, lake streams,
and ground water fit to be used for human consumption and other uses.
FOUR SYSTEMS THAT MAKE UP THE EARTH
15. ATHMOSPHERE
• layer of gases that surround the earth.
• One of the major functions of the atmosphere is to absorb solar
radiation that is harmful to living organisms and reflect it back to
outer space.
• Contains several gases that are essential to life like carbon,
hydrogen, oxygen, and nitrogen.
• Divided into different regions with their own distinct
characteristics.
FOUR SYSTEMS THAT MAKE UP THE EARTH
17. BIOSPHERE
• harbors all the living things in
the planet.
• Living organisms include all
microbial, animal and plant life
on Earth.
FOUR SYSTEMS THAT MAKE UP THE EARTH
19. POPULATION
• refers to the group of species
living together.
• Population of a certain species
has a limit (carry capacity)
• Carry capacity is the greatest
number of individuals that
environment can sustain.
6 LEVELS OF ECOLOGICAL ORGANIZATIONS
20. COMMUNITY
• alsocalled as “biological community”
• Consisting of populations of different organisms interacting in a
particular habitat.
• In a community, each has its own habitat.
• Each population in a community has its own niche.
6 LEVELS OF ECOLOGICAL ORGANIZATIONS
21. COMMUNITY
● Predators- naturally preys on others
● Herbivores- feeds on plants
● Omnivores- eats plants and animals
● Decomposers- break down dead
6 LEVELS OF ECOLOGICAL ORGANIZATIONS
23. ECOSYSTEMS (ECOLOGICAL
SYSTEM)
• a geographic area where plants, animals
and other organisms, as well as weather
and landscape, work together to form a
bubble of life. Ecosystems contain biotic or
living parts, as well as abiotic factors, or
nonliving parts.
6 LEVELS OF ECOLOGICAL ORGANIZATIONS
24. BIOMES
• climate determines where life can be
further broken down based on temperature,
soil type, and organisms that live there.
• Major biomes include; deserts, grasslands,
tundra, forests, and aquatic environments.
6 LEVELS OF ECOLOGICAL ORGANIZATIONS
25. BIOSPHERE
• part of the Earth where life exists (all
biomes)
6 LEVELS OF ECOLOGICAL ORGANIZATIONS
