The satellite of the earth. About of the earth
It rises from the east and changes position 13 degrees every rotation.
The moon took 27 days to complete one orbit to the earth sidereal month
29 days in the synodic month.
The moon rotates the same speed
mountain or hill formed by the accumulation of
materials erupted through one or more openings
(called volcanic vents) in the earth's surface.
The term volcano can also refer to the vents
Most volcanoes have steep sides, but
The MOST ACTIVE volcano in the world erupting since 1983
eruption of Kilauea crater spilled molten, basaltic lava down the flanks of
Mauna Loa volcano on
Water is life. All living things depend on it.
Human body is about 70% water
75% of the Earths surface is composed of water
Municipal Sewage/ Oxygen demanding waste =(BOD
biological oxygen demand) : oxygen dissolved in water to