Q. Enumerate the major causes behind marine heatwaves. Also, discuss their impact on the ocean ecosystem.
Approach: Give a brief definition of marine heatwaves (MHWs). Mention various causes responsible for MHWs. Write about the impact of MHWs on the ocean ecosystem. Conclude accordingly. Answer: Heatwaves that occur in the ocean are known as marine heat waves (MHWs). MHWs are said to have occurred when seawater temperatures exceed a seasonally varying threshold …
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