Flash Cards: Oceans and Continents

An ocean is a vast body of saltwater that covers about three-fourths of the Earth's surface.

There are five oceans: Pacific, Atlantic, Indian, Arctic, and Southern (Antarctic) Ocean.

The Pacific Ocean is the largest ocean in the world.

These are smaller extensions of the ocean; a sea is partially enclosed by land, a bay is a body of water surrounded by land on three sides, and a gulf is a larger inlet of the sea.

About 71% of the Earth's surface is covered by water, while land makes up the remaining 29%.

Oceans help regulate the Earth's climate by absorbing heat and distributing it through ocean currents.

World Oceans Day, celebrated on June 8, reminds us of the importance of oceans in our daily life and the need to protect them.

Freshwater is a small proportion of the Earth's water, found in rivers, lakes, glaciers, and underground.

A tsunami is a massive wave caused by underwater earthquakes or volcanic eruptions, which can cause significant destruction to coastal areas.

Islands are landmasses surrounded by water. They can vary greatly in size.

Greenland is the largest island in the world.

Human activities, such as pollution and overfishing, threaten marine life and the health of oceans.

Marine life refers to all living organisms that inhabit oceans, including fish, whales, algae, and corals.

Oceans are interconnected bodies of water, allowing water to flow freely between them.

The Northern Hemisphere has more land than the Southern Hemisphere, with a roughly 61% water to 39% land ratio.

Oceans play a critical role in the water cycle by providing moisture for evaporation, which leads to precipitation.

Marine flora, such as phytoplankton, produces more than half of the world's oxygen, making oceans vital for life.

Yes, continents can be counted as four to seven based on different definitions, e.g. Europe and Asia may be considered one (Eurasia) or two continents.

The monsoon is a seasonal wind pattern that brings heavy rainfall, especially in countries like India, originating from the oceans.