1. The document discusses the water cycle and identifies the key processes as condensation, precipitation, evaporation, transpiration, infiltration, and surface run-off. 2. It also discusses the composition of the atmosphere, noting it is composed of 78% nitrogen, 21% oxygen, 0.9% argon, and trace amounts of other gases. Atmospheric circulation plays an important role in redistributing heat across the Earth's surface. 3. The layers of the atmosphere are identified as the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. Details are provided about each layer, including their composition and characteristics.

1. Jerome A. Bigael,
Leyte Progressive High School
1

2. 2
Label the
following
Use the ff words:
Use the following
terms to complete
the cycle:
- condensation
- precipitation
- evaporation
- transpiration
- infiltration
- surface run-off

4. Earth is
composed of
subsystems
4
Earth system is essentially a closed system. It receives
energy from the sun and returns some of this energy to
space.

5. Atmosphere
The present atmosphere is
composed of 78% nitrogen (N),
21% oxygen (O2), 0.9%
argon, and trace amount of
other gases
One of the most important
processes by which the heat on
the Earth's surface is
redistributed is through
atmospheric circulation.

6. Describe the following Terms (without searching on the internet):
Troposphere
Stratosphere
Mesosphere
Thermosphere
Exosphere
And illustrate those terms using the materials given to you by the
subject teacher. (colored papers) and report it to the class.

9. Layers of the
Atmosphere
The layer closest to the Earth’s surface. Weather
occurs in the troposphere because this layer contains
most of the water vapors. Most jets and planes would
fly slightly above the troposphere to avoid turbulence
in weather.
Prior reaching the next layer, above the troposphere is
a buffer zone called tropopause.

11. a high
concentration of ozone.
Stratosphere

12. stratopause

14. Mesosphere
mesopause

16. Thermosphere

19. the atmosphere