water class 7

What is a WATER CYCLE?

• The Process by which water occasionally changes it's form and circulates between oceans, atmosphere and land is known as water cycle.

• The Process by which water continually changes it's form and circulates between oceans, atmosphere and land is known as water cycle.

• The Process by which water occasionally changes it's form and circulates between amazon river, atmosphere and land is known as water cycle.

• The Process by which water in rainy season changes it's form and circulates between oceans, atmosphere and land is known as water cycle.

What are tides?

What type of tide is this?

(a)  

Why is ocean water salty

A huge wave is called Tsunami.

• True

• False

The warm ocean currents originate near________.

• Equator

• Poles

• None of these

Caspian Sea

• Largest sea

• Water cycle

• Strong seismic

• Largest lake

The (a)   in Andaman and Nicobar islands got submerged after the tsunami.

The waves travel at the speed of more than ____Km per hour.

• 500

• 600

• 700

• 750

___________ are formed when winds scrape across the ocean surface.

• Tides

• Ocean Currents

• Tsunami

• Waves