Absolutely necessary; extremely important.
"it is essential to keep up-to-date records"
The answer is C for both because they follow the correct syntax and conventions of english to allow the reader to effectively read the sentence without confusion.
The subject of a clause goes in one slot, the verb in another, and so on. Words that modify another word are attached to the word they modify.
Answer: self production
Explanation: Plants tends to manufacture for them self unlike animals, they use the energy gotten from the sun to convert carbon dioxide and water in energy rich sugar called glucose.
Also plants use leaves to make food for them self, oxygen is produced as a by-product and carbon dioxide is gotten from the atmosphere.
Answer:
Talking about themselves to one another
They talk~ lol
Explanation: