Option (B) is incorrect because the agricultural marketing system primarily includes:
Assembling: Collection of produce from farms.
Storage and Transportation: Safeguarding and moving produce to markets.
Processing: Converting raw produce into finished goods.
Grading and Packaging: Preparing produce for sale.
Distribution: Delivering goods to consumers or retailers.
Option (B) incorrectly includes Production, which is a part of the agricultural sector but not of the marketing system. Marketing begins only after production is completed.
A certain reaction is 50 complete in 20 minutes at 300 K and the same reaction is 50 complete in 5 minutes at 350 K. Calculate the activation energy if it is a first order reaction. Given: \[ R = 8.314 \, \text{J K}^{-1} \, \text{mol}^{-1}, \quad \log 4 = 0.602 \]