If I tell you that A delta is formed by erosion , and ask you the question "a delta is formed by ", is the correct answer "erosion"?
Yes
--
If I tell you that If an object is made of metal then that objects has the properties of the metal, and ask you the question "if an object is made of metal, what does it always share of metal?", is the correct answer "size"?
No
--
If I tell you that  the gravitational pull of the Moon on the Pacific causes the tides, and ask you the question "what does the gravitational pull of the moon cause?", is the correct answer "earth's rotation"?
No
--
If I tell you that Bacteria cause disease in hosts, and ask you the question "what cause disease in hosts?", is the correct answer "insects"?

No
--