The believe the answer is true but I'm not completely sure. <span />
Answer:
only 30% of total energy will be useful ..
So, Useful energy =

13.5J energy is useful
Answer:
Transcription occurs the nucleus of eukaryotic cells
Answer:
Front the atmosphere that's from environment
Answer:
.
Explanation:
To explain the last sentence, what I mean by that is the sudden decrease in air pollution in just a few weeks is what would have typically taken multiple years to do. Due to less drivers, factories shutting down, and more, less toxic and infirm mental hazardous chemicals were released into the atmosphere in an extremely short amount of time. However, nowdays, it is almost back to where is was before the pandemic.