Class 11 Chapter 12 Water (Ocean)

What is an ocean short answer?

An ocean is a continuous body of salt water that is contained in an enormous basin on Earth’s surface. The major oceans and their marginal seas cover nearly 71 percent of Earth’s surface, with an average depth around of 3,688 metres (12,100 feet).

What are ocean currents class 11?

Ocean currents are channels of water moving in a particular direction in the oceans. The ocean currents are of two types – the warm currents and the cold currents. The warm currents flow from the equatorial region towards the poles. The cold currents flow from the poles to towards the equatorial regions.

What is a short note on variation in salinity Class 11?

There are 35 parts per thousand of salinity on average in the oceans and seas, but this varies with spatial and temporal variations among the oceans, seas, and lakes. Salinity varies horizontally as well as vertically.

What are the movements of ocean water Class 11?

The horizontal and vertical motions are common in ocean water bodies. The horizontal motion refers to the ocean currents and waves. The vertical motion refers to tides. Ocean currents are the continuous flow of huge amount of water in a definite direction while the waves are the horizontal motion of water.

What are the 5 lines of the ocean?

Ocean is a huge body of salt water. Oceans cover nearly 71 percent of Earth’s surface. They contain almost 98 percent of all the water on Earth. There is one world ocean, but it is divided into five main areas: the Pacific, the Atlantic, the Indian, the Arctic, and the Southern, or Antarctic.

What are two types of ocean currents?

There are two distinct current systems in the ocean—surface circulation, which stirs a relatively thin upper layer of the sea, and deep circulation, which sweeps along the deep-sea floor.

Why is the ocean so important?

The ocean affects us all in positive ways, no matter if you live on the coastline or in the desert. It provides climate regulation, food, jobs, livelihoods, and economic progress. Thus, we must work together to protect and save the ocean for the sake of our future survival on this planet.

The Ocean Water is the salty water that makes the whole ocean and sea. It is the primary component of the Earth’s hydrosphere which accounts for almost 97% of the Earth’s water. The ocean and sea are the important habitats for so many species of the Earth. It is a complex mixture of 96.5 percent water and 2.5 percent salts. Some smaller amounts of other substances, including dissolved inorganic and organic materials, particulates, and a few atmospheric gases are also present in the Ocean Water.

In this article, we are going to discuss the Water of the Ocean in detail.