Choose the correct item (A, B, C or D).

The last time you went to eat in a fish restaurant, did you ask the waiter any questions first? For example, if they knew where their fish came from? Whether the fisherman who caught them use sustainable fishing methods? Did he catch them in an area with good numbers of fish? Or is the fish on the menu in danger of disappearing?

Scientists are warning that many of our favourite fish face extinction if our methods of fishing do not change. Some fish populations have fallen by up to 90%, but still fishing boats go after them. This is because their price has gone up, so just by catching a few, fishermen can still make a good living. Such an attitude could soon lead to some types of fish dying out forever. So what can save them?

First, there must be an immediate ban on catching any fish whose numbers drop too low. This would allow the shoals time to recover. Second, nobody should practise 'bottom trawling'. This is a method of fishing where a boat drags a net along the bottom of the sea. Apart from catching every kind of fish down there, regardless of whether it is edible or not, it also destroys the sea floor, making it a place where nothing can live.

However, the most important person in this whole business is the one with the menu in their hands. People keep buying fish, never asking where it is from, and so fishing boats continue to go out and catch those endangered species. The next time you are in a restaurant, therefore, make sure you ask the question: is this one of those species? Is this fish in danger, or is it safe to eat?

                                      The Driverless Car

A car with no driver but a computer has appeared in many science fiction books and films. It is very soon going to be part of our lives, however, because the first models are undergoing tests in the USA as we speak!

In fact, driverless cars are allowed by law in three states, though no one is using them to get around yet. A powerful central computer is in charge of each car, receiving a continuous stream of information from both GPS satellites and its own radar system. These give the computer a picture of where it is and how to go to where it is going. Special sensors allow it to avoid other traffic on the road.

So far, in tests, the driverless cars have a driver behind the wheel to make sure nothing goes wrong. Interestingly enough, the only two accidents these cars have been in have both been people's fault. The first happened when a car with a driver ran into the back of a driverless car, which had stopped at a red light. The second happened when the driver in a driverless car made a mistake and crashed it!

The designers of the system believe that the driverless car will completely change the way we get around. No more wasting time in traffic, stopping and starting. No more angry, impatient drivers trying to get to work. Just lines of robotic cars, whizzing their contented passengers to work at top speed, constantly moving yet never crashing.