1) In England, however, the tungsten-tipped spikes would tear the thin tarmac surfaces of our roads to pieces as soon as the protective layer of snow or ice melted.

2) Road maintenance crews try to reduce the danger of skidding by scattering sand upon the road surfaces.

3) We therefore have to settle for the method described above as the lesser of two evils.

4) Their spikes grip the icy surfaces and enable the motorist to corner safely where non-spiked tyres would be disastrous.

5) Its main drawback is that if there are fresh snowfalls the whole process has to be preheated, and if the snowfalls continue, it becomes increasingly ineffective in providing some kind of grip for tyres.

6) These tyres prevent most skidding and are effective in the extreme weather conditions as long as the roads are regularly cleared of loose snow.

7) Such a measure is generally adequate for our very brief snowfalls.

8) Whenever there is snow in England, some of the country roads may have black ice.

9) In Norway, where there may be snow and ice for nearly seven months of the year, the law requires that all cars be fitted with special steel spiked tyres.

10) Motorists coming suddenly upon stretches of black ice may find themselves skidding off the road.

According to the text, it is INCORRECT to say that: