Answer:
I think it is the variable.
Explanation:
For the second one it’s B or C, I dunno if phototropism is a real word cuz all the rest are vital.
Answer:
The options are
A. Delta
B. Watershed
C. River
D. Lake
The CORRECT ANSWER IS A
A. Delta
Explanation:
Delta fan is a low lying vegetation that consists majorly of stream –the river accumulates borne sediments at its mouth. It occurs when a river flows to a body of standing water, taking with it soil and minerals as it flows into the body of standing water to form a fan shape or triangle as seen in the attached image.