Вставить (who,which,whose,where,when

1. whose
2. where
3. where
4. whose
5. when

1.  rail: advantages: ability of loading and unloading goods and services is more.frequency of delivering the goods over long distances is more.climatic conditions have no effect.no traffic or congestion easy movement of the vehicle.disadvantages: capital and initial investments are more.high material usage for the construction and even the fuel consumption.2.  air: advantages: highest speed.even delivers goods to remote places.high reliability.disadvantages: highest cost of transportation.even adverse weather conditions effect the transportation.material and fuel consumption is costly.3. water: advantages: it is economical mode for transporting heavy loads and even cargo.it is the safest mode which provides convenience to the people without accidents.cost of construction and maintenance is very low.it even provides international transport. disadvantages: it is highly affected by the weather conditions.it requires large initial investment.it is a slow process.