WATER ON EARTH

ANIS KHALILA AHMAD KAMIL

WHAT IS WATER ?• WATER IS A CHEMICAL SUBSTANCE THAT IS

COMPOSED OF HYDROGEN AND OXYGEN AND IS VITAL FOR ALL KNOWN FORMS OF LIFE. IN TYPICAL USAGE, WATER REFERS ONLY TO ITS LIQUID FORM OF STATE BUT THE SUBSTANCE HAS A SOLID STATE, ICE AND GASEOUS STATE, WATER VAPOUR OR STEAM. ON EARTH, IT IS FOUND MOSTLY IN OCEANS AND OTHER LARGE WATER BODIES.

OCEANS

• OCEANS ARE MAJOR BODY OF SALINE WATER AND A PRINCIPAL COMPONENT OF HYDROSPHERE.71% OF EARTH’S SURFACE IS COVERED BY OCEAN. THE MAJOR OCEANIC DIVISIONS ARE DEFINED IN PART BY CONTINENTS AND OTHER CRITERIA.

LAKES

• A LAKE IS A FEATURE THAT CONSIST OF A BODY OF LIQUID ON THE SURFACE OF A WORLD THAT IS LOCALIZED TO THE BOTTOM OF BASIN AND MOVES SLOWLY. ON EARTH, A BODY OF WATER IS CONSIDERED AS A LAKE WHEN IT IS IN LAND, LARGER AND DEEPER THAN A POND AND FED BY A RIVER.

PONDS

• A POND IS A BODY OF A STANDING WATER THAT IS USUALLY SMALLER THAN A LAKE. A WIDE VARIETY OF MAN-MADE BODIES OF WATERS ARE CLASSIFIED AS PONDS INCLUDING WATER GARDENS, SOLAR PONDS AND FISH PONDS.

RIVERS

• A RIVER IS A NATURAL WATERCOURSE USUALLY FRESHWATER FLOWING TOWARD AN OCEAN, A LAKE, A SEA OR ANOTHER RIVER. A RIVER SIMPLY FLOWS INTO THE GROUND OR DRIES UP COMPLETELY BEFORE REACHING ANOTHER BODY OF WATER. SMALL RIVERS ARE STREAM, CREEK, BROOK, RIVULET AND RILL.

STREAMS

• A STREAM IS A FLOWING BODY OF WATER WITH A CONFINED WITHIN A BED AND STREAM BANKS. STREAMS ARE IMPORTANT IN THE WATER CYCLE AND THE SERVE CORRIDORS FOR FISH AND WILDLIFE MIGRATION.

EFFECTS OF WATER

POLLUTION

Ecosystem destroyed

Causes diseases such as hepatitis,

diarrhea, cholera and typhoid fever

Loss of water resources

Disturbs the food chain

WAYS TO CONSERVE WATERi. USE THE WATER WISELY.

ii. DO LESS LAUNDRY.

iii. FIX THE DRIP.

iv. CLOSE THE HOSE.

v. CHECK THE PLUMBING.

vi. START A CAMPAIGN IN YOUR COMMUNITY.