I think there many things that railway can helps a country to grow. A railway can helps a country to become bigger and development. For transportation is an easy to project of countryside's also helps trains to go more fasting then the horse and buggy. A railway can helps a country for travel or traveller.
i think its osteoblasts
They think that it helps their crops grow
I think manure helps plants grow faster due to nutrients and nitrates.
infrastructure means all kind of construction activities which helps a country to grow its economy
The sun helps plants grow and the rain waters plants that is what I can think of.
Mangoes, Pineapples, and I think even lychee nuts. Hope this helps!
trees and grass
i think it is calcium because it helps the bone grow stronger
No shampoo helps your hair grow.
Plants grow because of there pholem it gives them their strenth.
Water helps plants grow
i think the monsoons help their plants