If they choose to attack, they can kill you (Via drowning, crushed skull, bloodloss, etc), they can seriously injure you, or they can just give you a scrape on the arm, although this is unlikely if they are hunting and have managed to get that close.
They can just swim past you too, if your not making yourself look like a turtle or prey.
they can both kill people
A squid can kill a shark. Depending upon the size of the squid, and the size of the shark, the squid can also eat the shark.
plane crashes yes not sure about the shark one thoughdonkeys kill on average 8,237 humans per year
a shark
One common reason , the fins of the sharks are used in Chinese soups illegally though in many cases.
For the thrill of the kill. Illegal shark-fin fishing.
A tiger shark is the most likely to kill someone.
Tiger sharks grow larger, and a big one could kill a large bull shark.
you are more likely to get killed by a coconut then a shark most shark attacks are non fatal
Yes. It can kill any shark by its deadly venom.
no because a shark can bite!
A shark can kill both. A piranha may be fast and have lots of teeth, but so does a shark. And many sharks are cannibals, meaning they will eat their own kind.