Answer:
b
Explanation:
scramble the word answer in the word of philippines and lambot
Flashback, to give the reader backround information
(Apex)
Answer:
The correct answer for this question is D) Over time the sand bed will become plugged with dirt and require a cleaning process known as backwashing.
Explanation:
This sentence best fits at the end of the topic as it explains that one stage of the maintenance process is the backwashing of the item.
I missed 2 ones, I'm sorry but this is all I could do.