verb
1.
carry out (something) in gradual stages.
2.
PHYSICS
adjust the phase of (something), especially so as to synchronize it with something else.
noun
1.
a distinct period or stage in a series of events or a process of change or development.
2.
each of the aspects of the moon or a planet, according to the amount of its illumination, especially the new moon, the first quarter, the full moon, and the last quarter.
The central idea is what the main thing. For this, I think the central idea is simply Cactuses.
I'm not sure what another supporting detail can be, but if there's a back side, or another page about cactuses, I can sure help! But if that's the only side, ask your parents. xD
Answer:
I don't get it what do you mean
Explanation:
??
