Which example best shows that the chemisty of water is helpful to plants​

Defend or refute the argument that the government has too large a presence in the agriculture industry.

Ialready know the answers to these questions and they are on the attachment. but i just need to know why that answer is the correct one. plz asap! this is for a report that i need to email by 10!

What is the role of dna ligase in the elongation of the lagging strand during dna replication?