Answer:stopped many jobs and affected peoples life style
Explanation: many places closed down and people lost there jobs. People that like to go to the gym no longer cant and many places arent dine in anymore
<h2>Answer:</h2>
Option C is correct.
C. 5 kilocalories
<h2>Explanation:</h2>
Only a little amount of energy as 10% is transferred to the next trophic level. This is called 10% rule. So, in this case as the energy available at the secondary trophic level is 50 kilocalories and 10% of it is transferred into the tertiary level so it would be 5 kilocalories.
D is the correct answer :)
Chemical energy through the process of photosynthesis.
I believe it is the nucleus.