qqp question1: Do raw materials like coal and iron travel by train-only on land, or do they use trucks and planes too, like Amazon, Ebay, and Jet use? question2: We have companies like Shopify on one side and companies like Flipkart and Amazon and Lenskart etc. on the other. Were these better known companies built on their own or did they initially or even today use the platforms provided by companies like Shopify?