Task reminder: Select all correct responses. Negative marking applies — each wrong selection deducts a mark.

1. Renewable Energy Challenges

Which of the following challenges of renewable energy are discussed? A. Intermittency of solar and wind power B. High operational costs compared to coal C. Need for energy storage solutions D. Limited geographic availability of tidal power E. Grid integration complexity

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2. Microplastics in the Ocean

Which statements about microplastics are supported by the audio? A. They are found in all ocean depths B. They originate exclusively from industrial discharge C. They are ingested by marine organisms D. Filtering microplastics from water is technically simple E. They have been detected in human blood

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