Answer key

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Last edited 43 days ago by Learn LoopHQ.

Chapter: 04. Major Water Bodies

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A sea is a part of an ocean that is smaller and shallower, typically located closer to the edge of a landmass or continent.

The Danube River is Europe’s second-longest and flows through or along the borders of ten European countries.

Rivers provide energy by powering hydroelectric plants to generate electricity and by facilitating industries to grow through power generation.

Chilika Lake serves as the largest ground for migratory birds in the Indian subcontinent during winter.

The Pacific Ocean is known as the ‘Ring of Fire’ due to the concentration of active volcanoes along its borders.

Tidal energy is produced by harnessing the enormous energy contained in the movement of ocean tidal waves.

Water covers approximately 71% of the Earth’s surface.

Lake Victoria is the largest lake in Africa and serves as the main reservoir for the Nile River.

In its upper course, a river flows very swiftly because it is typically located in mountainous areas where the land is steep.

A gulf is a deep indentation of the sea with a narrow opening, whereas a bay is a broad, semicircular indentation.

Man-made lakes are typically formed as reservoirs constructed along with dams to store water.

Oil spills harm birds by coating their feathers, which can lead to poisoning when the birds attempt to clean themselves.

The Arctic Ocean is the smallest and shallowest ocean.

The mouth of a river is the place where the river ends its journey, normally entering a sea or a lake.

Microplastics are tiny pieces of plastic that remain after larger plastic items break down but do not fully degrade, taking thousands of years to do so.

Plastic pollution causes suffocation, entanglement, laceration, infections, and internal injuries to marine animals.

Marie Tharp was a geologist and oceanographic cartographer who notably discovered the Mid-Atlantic Ridge, a vast underwater mountain range in the Atlantic Ocean.

The five oceans are the Pacific, Atlantic, Indian, Arctic, and Southern Oceans.

The Atlantic Ocean is shaped like the letter ‘S’.

The Indian Ocean is named after India because India is prominently located at the head of this ocean.

The Strait of Gibraltar connects the Mediterranean Sea to the North Atlantic Ocean.

The Huang He, also known as the Yellow River, is considered the cradle of the Chinese civilization.

Two other significant trenches in the Pacific Ocean are the Philippine (Mindanao) Trench and the Japan Trench.

Three common sources of water pollution are untreated liquid waste from households, liquid waste from thermal power plants, and surface run-off from farms.

Evaporation from ocean surfaces transfers water vapor to the atmosphere, which later falls as rain, thus moderating the climate of coastal areas.

The Yangtze River is the longest river in Asia and the third-longest in the world.

Oceans facilitate international trade by providing essential routes for transporting goods across the globe.

The Caspian Sea or the Dead Sea are examples of large saline water bodies cut off from the open ocean that are still referred to as ‘seas’.

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