CURRENT AFFAIRS

2023

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Surface currents are driven by the sun because ____
A
The sun heats the water, which causes it to rise. This flow of water forms a surface current.
B
The sun heats the air which creates wind. This wind pushes the water at the surface of oceans around.
C
The sun causes water to become more salty. This water is more dense and sinks, causing a flow of water.
D
The sun heats the land, which in turn heats water at the beach, forming waves.
Explanation: 

Detailed explanation-1: -The Sun’s Energy for Ocean Currents The sun warms up parts of the oceans. Warm waters rise just like warm air rises. So, as the warmer ocean waters begin to rise in a particular area, the cooler ocean waters from a different area will move in to replace the warmer ocean waters, and this creates our ocean currents.

Detailed explanation-2: -Surface currents in the ocean are driven by global wind systems that are fueled by energy from the Sun. Patterns of surface currents are determined by wind direction, Coriolis forces from the Earth’s rotation, and the position of landforms that interact with the currents.

Detailed explanation-3: -The Sun also provides the energy that drives convection in the ocean and produces ocean currents. There are two main types of ocean currents: surface currents and deep currents.

Detailed explanation-4: -Icebergs form over this ocean gyre in the North Atlantic Ocean, near the southeastern coast of Greenland. Wind patterns and the rotation of Earth cause spiral or circular currents to form in the ocean. These currents are called gyres.

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