modes of transport-pipelines

3. •Pipelines are used for
transporting crude oil,petroleum
products and natural gass from
oil and natural gas fields to
refineries,fertilizer factories and
big thermal power plants.In the
past,they were used used to
transport water.
•Solids can be transported when
converted into slurry.
•Initial cost of laying pipelines is
high but subsequent running
costs are minimal.

4. If all the natural gas pipelines in the
U.S. were connected to each other
they would stretch to and from the
moon almost three times.