I think d I'm in not 100% sure but I think so
Answer:
When sodium bicarbonate is added to the water, the bicarbonate ion acts as a carbon source for photosynthesis causing the leaf disks to sink. As photosynthesis proceeds, oxygen is released into the interior of the leaf, which changes its buoyancy causing the disk to rise.
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<span>Catalase is a common antioxidant enzyme which is produced naturally in almost all living organisms. </span>
Answer:
pollutants are transported by are from Eurasia
Explanation: