Water

....................... is an artificial enclosure for keeping small houses plants

• Terrarium
• Greenhouse
• Planter
• Flowerpot

........... is the amount of salt in 1000 grams of water

• Salinity
• Ocean water

• Dissolution
• Saline

Salt which is present in ocean water

• Potassium chloride (KCl)
• Calcium carbonate (CaCO3)
• Magnesium sulfate (MgSO4)
• Sodium chloride (NaCl)

Types of ocean movements

• tsunamis
• floods
• Waves, tides, currents

• whirlpools

Choose the correct one

• March 23 is celebrated as World Water Day

• The stronger the wind blows the bigger the tide becomes

• Earthquake can shift large amount of ocean water and cause waves

• Tsunami means Harbour city in latin word

Precipitation is

• rain, sleet, snow or hail.

• only rain.

• only snow or hail.

5. Select from the following a warm current of the Atlantic Ocean.

• (a) Gulf stream

• (b) Kuroshio Current

• (c) Labrador current

6. Which of the following is the source of fresh water?

• (a) Seas

• (b) Oceans

• (c) Snow and ice

10.The periodic rising and falling of sea waters.

• (a) Waves

• (b) Tides

• (C) Ocean Currents

11._____ occur when the sun, the moon and the earth are in a straight line.

• (a) Spring tides

• (b) Neap Tides

• (c) Bore Tides