Any step or path will wear due to the constant passage of feet over a long time. The rate of wear can be slowed by covering the steps with a hard-wearing non-slip coating.
Erosion, caused by the number of people using it.
The largest station is Edinburgh Waverley, in the city centre, served by all mainline and local services. Most trains passing through Waverley also stop at Haymarket, to the west. Other stations include Edinburgh Park, Brunstane, Newcraighall, South Gyle, Dalmeny, Kingsknowe, Slateford, Wester Hailes and Curriehill. That makes up 2 mainline stations and 11 in total.
Tempurature makes sound travel slowly. If it is cold outside sound travels slowly and if it is hot outside sound travels quickly.
it is the molecules they burn slowly and not very fast
The stations letting CO2 gas out to the atmosphere to act as a blanket or a green house so this makes our earth warmer and this stations damage our plants and animals.
it makes it tight
Weak battery
A car.
bacteria reproduce quickly or Macrophages work slowly
Merlin10 it makes your health regerate slowly
the metal expands and makes metal soft
An elevated train makes use of railway tracks that are above street level