<h2>Answer:</h2>
In a magazine advertisement, as they claim about the product having ceramic pellets, changing the PH of the water, about reducing wear on their clothes, contaminants in the environment.
So, the important thing they should do in the advertisement to give consumer more confidence is to prove their claims with extensive product testing and also they should reveal their results with the customers.
They find shells that other crabs have left behind and use them
* There have been times when naval vessels have collided with uncharted seamounts
* Seamounts can grow large enough to become an oceanic island
* Seamounts are usually in archipelagos, or groups of seamounts or island surrounded by a body of water
(: I hope this helps! :)
ANSWER:
I think it's the second one.
EXPLANATION:
in primary succession newly exposed or newly formed rock is colonized by living things for the first time. in secondary succession an area that was previously occupied by living things is disturbed, then recolonizeed following the disturbance.