The trolleys have been reduced over the last decades, after their initial increase as a public transportation, when new and better ways were discovered/produced for transport, their decline has started.
The buses since their invention, had grown in number and became a very important part of every city's public transportation, and still are.
The rapid transit is the most recent one of the mentioned in here. It's popularity has grown, number increased, and is very practical because it is not causing traffic mess. It is very important transport asset nowadays and makes lives of millions of people much easier.
Catholics is the most common religion in the U.S
A) fresh water: fresh water means it is water that is fresh and it doesn't come from the sea or isn't polluted.
B) groundwater: it is presented beneath Earth's surface in soil pore spaces and in the fractures of rock formations
C) aquifer: it is a underground layer of water-bearing permeable rock.
D)irrigate: it is supply water to help land or crop grow.
E) physical water scarcity: it occurs when and where there is not enough water to meet both human demands and those of ecosystems to function effectively.
F) economic water scarcity: it is caused by a lack of investment in water or infrastructure of insufficient human capacity to satisfy the demand of water in areas.
Hope this helped :)
Have a great day
Through the ground straight to Africa from South America.