How would extra carbon dioxide in a lake be removed

The primary source of carbon dioxide in lake is decomposition of organic matter in the lake. This carbon dioxide is a huge problem for aquatic animals as they face problems during respiration.

Carbon dioxide in a lake can be removed  by chemical treatment using liming agents such as  sodium carbonate or hydrated lime and quicklime. These liming agents react with carbon dioxide and reduces carbon dioxide and  increases the pH and alkanity of the lake.

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.