That will be once every year
They can identify disorders and diseases from DNA
According to the graph, the times for high tide would be 1 AM and 1 PM.
The low tides would be at 7 AM and 8 PM.
rocks can become soil in multiple different ways one could be primary succession which means some algae or moss grows onto rocks with out soil then they slowly gain moisture which attracts some other plants like flowers which then breaks down the rock into smaller things then grasses come in and turns it into soil.
The instrument of choice would be the the clam shell sampler, which is also know as a grab sampler. Another instrument they use is the piston corer which is an open tube on a cable that gets dropped from a ship.