Question

Answer the following questions.
a. What are waves, tides and currents?​

Answer 1

Answer:

Waves and the ocean currents are horizontal movements of ocean waters while the tide is a kind of vertical movement of the ocean water.

Answer 2

Answer :

Waves

A wave curls near the shore.

Waves play an important role in the way coastal ecosystems function, and also provide tourism dollars because of their draw for surfers.

Sculpting seawater into crested shapes, waves move energy from one area to another. Waves located on the ocean’s surface are commonly caused by wind transferring its energy to the water, and big waves, or swells, can travel over long distances.

When waves crash onshore they can make a significant impact to the landscape by shifting entire islands of sand and carving out rocky coastlines. Storm waves can even move boulders the size of cars above the high tide line, leaving a massive boulder hundreds of feet inland. Until recently, scientists attributed the placement of these rogue boulders to past tsunami damage, however, a 2018 study upended this notion by carefully recording the movement of boulders along a swath of rocky coastline in Ireland over a time period in which no tsunamis occurred. In addition to over 1,000 mid-sized boulders, many reaching over 100 tons in weight, scientists recorded the movement of a 620-ton boulder (the same weight as 90 full-sized African elephants), showing that storm waves moved it over 8 feet (2.5 meters) in just one winter.

Tides

Tides are actually waves, the biggest waves on the planet, and they cause the sea to rise and fall along the shore around the world. Tides exist thanks to the gravitational pull of the Moon and the Sun, but vary depending on where the Moon and Sun are in relation to the ocean as Earth rotates on its axis. The Moon, being so much closer to Earth, has more power to pull the tides than the Sun and therefore is the primary force creating the tides.

Ocean Current

A large movement of water in one general direction is a current. Currents can be temporary or long-lasting. They can be near the surface or in the deep ocean. The strongest currents shape Earth’s global climate patterns (and even local weather conditions) by moving heat around the world.

At the surface, currents are mainly driven by four factors—wind, the Sun’s radiation, gravity, and Earth’s rotation. All of these factors are interconnected. The Sun’s radiation creates prevailing wind patterns, which push ocean water to bunch in hills and valleys. Gravity pulls the water away from hills and toward valleys and Earth’s rotation steers the moving water.

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