SDG 9, of the international sustainable development goals set by the United Nations General Assembly, deals with infrastructure, but it is important to realize that infrastructure is a building block for the rest of the SDGS therefore the achievement of sustainable infrastructure is of significant concern  .
SDG 9, of the international sustainable development goals set by the United Nations General Assembly, deals with infrastructure, however, infrastructure is a building block for the rest of the SDGS . Therefore, the achievement of sustainable infrastructure is of significant concern in multiple areas of society .
R
but it is important to realize that
however,
R
therefore
. Therefore,
A
in multiple areas of society