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Ocean Currents Video Lecture | Crash Course for UPSC Aspirants
FAQs on Ocean Currents Video Lecture - Crash Course for UPSC Aspirants
| 1. What are ocean currents? |  |
Ans. Ocean currents are continuous movements of ocean water in a specific direction, driven by various factors such as wind, temperature, salinity, and the rotation of the Earth. These currents play a crucial role in distributing heat, nutrients, and marine life across the globe.
| 2. How are ocean currents formed? | |
Ans. Ocean currents are primarily formed by the combined effects of wind, temperature, salinity, and the Earth's rotation. Surface currents are mainly driven by winds blowing across the ocean surface, while deeper currents are influenced by differences in temperature and salinity, known as thermohaline circulation.
| 3. What are the different types of ocean currents? | |
Ans. There are two main types of ocean currents: surface currents and deep-sea currents. Surface currents are driven by wind patterns and occur in the upper 400 meters of the ocean. Deep-sea currents, also known as thermohaline currents, are driven by temperature and salinity differences and flow in the deeper layers of the ocean.
| 4. How do ocean currents impact climate? | |
Ans. Ocean currents play a significant role in regulating global climate patterns. They transport warm or cold water from one region to another, influencing the temperature and moisture content of the surrounding air. For example, the Gulf Stream current helps maintain a relatively mild climate in Western Europe.
| 5. What are the effects of ocean currents on marine ecosystems? | |
Ans. Ocean currents have a profound impact on marine ecosystems. They influence the distribution of nutrients, which affects the growth and productivity of marine plants and phytoplankton. These currents also determine the movement and migration patterns of marine animals, including fish and marine mammals, shaping their habitats and food availability.
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