Which factors influence the ocean currents?
Which factors influence the ocean currents?
There are four factors affecting the origin and flow of Ocean Currents i.e. Rotation and gravitational force of the Earth; Oceanic factors (temperature, salinity, density, pressure gradient and melting of ice); atmospheric factors (atmospheric pressure, winds, rainfall, evaporation and insolation); factors that …
Which of the following forces is the main force that cause the motion of ocean currents?
The main drivers of ocean currents are as follows: 1. The Coriolis Force. The rotation of the earth causes two main inertial forces: the centrifugal force pointing straight up (which is mostly swamped out by gravity), and the Coriolis force which points perpendicular to an object’s motion.
What are the two types of currents?
There are two kinds of current electricity: direct current (DC) and alternating current (AC). With direct current, electrons move in one direction.
What are types of currents?
There are two types of currents, surface currents and deep water currents, that dictate how and where water will move.
What are the major types of ocean current?
Two major kinds of currents define the planet’s oceans: surface currents driven by wind and deep-water currents driven by variations in seawater density.
What is the ocean current called?
Thermohaline circulation Deep ocean currents are driven by density and temperature gradients. This thermohaline circulation is also known as the ocean’s conveyor belt. These currents, sometimes called submarine rivers, flow deep below the surface of the ocean and are hidden from immediate detection.
What is the fastest ocean current in the world?
Gulf Stream
What are the major currents?
There are five major ocean-wide gyres—the North Atlantic, South Atlantic, North Pacific, South Pacific, and Indian Ocean gyres. Each is flanked by a strong and narrow “western boundary current,” and a weak and broad “eastern boundary current” (Ross, 1995).
What are the 3 types of currents?
Oceanic currents are driven by three main factors:
- The rise and fall of the tides. Tides create a current in the oceans, which are strongest near the shore, and in bays and estuaries along the coast.
- Wind. Winds drive currents that are at or near the ocean’s surface.
- Thermohaline circulation.
Can currents pull you underwater?
Myth: Rip currents pull you under water. In fact, rip currents carry people away from the shore. But while rip currents can move fast, they won’t take you far off shore. If you find yourself floating away from shore, try to relax, float, and wave for help.
Why are currents dangerous?
Dangerous currents occur in many ocean and Great Lakes beach areas. Dangerous currents are dangerous because they can pull swimmers away from shore. Swimmers near structures are more likely to die. Dangerous currents can exceed 5 mph — faster than an Olympic swimmer can swim (2 mph and faster are considered dangerous).
How much of the ocean is whale pee?
The picture isn’t much better for whales. Even though we haven’t hunted them on an industrial scale for decades, the ocean is still missing 66 to 99 percent of its blubbery behemoths. Blue whales, which urinate so prolifically, are at just 1 percent of their historic numbers in the Southern Hemisphere.
Why is ocean water unfit for drinking?
Why can’t people drink sea water? Seawater is toxic to humans because your body is unable to get rid of the salt that comes from seawater. Your body’s kidneys normally remove excess salt by producing urine, but the body needs freshwater to dilute the salt in your body for the kidneys to work properly.
Does rainwater need to be filtered?
Rainwater supplies may need to be filtered to ensure effective UV treatment. UV treatment does not remove chemicals from water. Water that has been disinfected using UV should be used straight away, not stored in tanks.
Is it safe to put bleach in drinking water?
Disinfect water using household bleach, if you can’t boil water. Only use regular, unscented chlorine bleach products that are suitable for disinfection and sanitization as indicated on the label….Emergency Disinfection of Drinking Water.
| Volume of Water | Amount of 6% Bleach to Add* | Amount of 8.25% Bleach to Add* |
|---|---|---|
| 8 gallons | 2/3 teaspoon | 1/2 teaspoon |
Is rain water acid or base?
Normal, clean rain has a pH value of between 5.0 and 5.5, which is slightly acidic. However, when rain combines with sulfur dioxide or nitrogen oxides—produced from power plants and automobiles—the rain becomes much more acidic. Typical acid rain has a pH value of 4.0.