A - Ff and Ff is the answer
Answer:Toothed whales do not make the long, low-frequency sounds known as the whale song. Instead they produce rapid bursts of high-frequency clicks and whistles. Single clicks are generally used for echolocation whereas collections of clicks and whistles are used for communication.
Hmm, we use carbohydrates as our main fuel energy source but we also store energy in lipids.
UV rays reacting with the O2 molecules
I might be wrong a little but
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