POWERPOINT PRESENTATION

1. EARTH SUBSYSTEM

2. EARTH’S MAJOR SUBSYSTEMS
ATMOSPHERE HYDROSPHERE
LITHOSPHERE BIOSPHERE

3. ATMOSPHERE
- Gaseous blanket of air that envelops, shields, and insulates Earth.
- Contains substances that are essential for life, including carbon, nitrogen,
oxygen and hydrogen.
- The atmosphere contains all the air in earth’s system.

4. HYDROSPHERE
- Contains all the solid, liquid, and gaseous water of the planet.
- Includes the water of earth - oceans, lakes, rivers, and glaciers.
- Water is essential for the existence and maintenance of life on earth.

5. LITHOSPHERE
- Solid part of the earth, from the core to the surface.
- Includes landforms, rocks, soils, and minerals.

6. EARTH’S INTERNAL STRACTURE

7. BIOSPHERE
- Composed of all living: people, animals, and plants. Also known as the
ecosphere, is the worldwide sum of all ecosystems. It can also be termed the
zone of life on earth, a closed systems, and largely self-regulating.
- Nearly 71% of the earth’s surface is covered by bodies of water.
- Interact with each other to support life.

8. WHAT IS ENVIRONMENT?
- Environment is the surrounding in which an organization operates, including
air, water, land and natural resources.
- It is where human beings, animals, or plants lives. It is our basic life support
system. It provides the air we breathe, the water we drink, the food we eat
and the land where we live. It is a combination of natural and human made
phenomena.

9. WHAT IS AN ECOSYSTEM?
- It is a community or group of living organisms that live in and interact with
each other in a specific environment.

10. WHAT IS ECOLOGY
- It is the study of relationships between organisms and their environment.
Ecology is a branch of biology concerning interactions among organisms and
their biophysical environment that includes both biotic and abiotic
components.