Hello @kiyaragupta ,
Thank you for submitting homework task 4 ! You have explained the topics well.

if the price of the coin rewarded for mining cannot cover the energy expended in mining it, ti does not make economic sense again to mine, thus, the project will be shutdown by the miners.

Yes , there is a risk associated with the unpredictable nature of the market. Sometimes investment of mining can be useless. It was a good read ! [7]
Thank you