i need to know which country these words came from caravan,yoghurt,sofa,dessert and shampoo

Your second word is from the Turk:

http://www.etymonline.com/index.php?search=yogurt&searchmode=none

Keep searching your words on that site, and you'll find out about each.

I would look them up here.

http://education.yahoo.com/reference/dictionary/entry/yogurt

Now yogurt is a curious dish. Have you ever had Turkish (or Greek) yogurt? It is like a custard, very much unlike that soft stuff we get in the stores in the US (unless you go to a import store). It is almost (not quite) like a soft cheese, very little moisture.
A very nice ice-cream is made in Central Turkey, and a variation of it is made with Goat yougart, sugar and sahlep powder (dried powdered roots of a mountain orchid - Orchis Latifolia or Orchis Anatolica in Latin). This is a dessert one will never forget. The orchid is becoming rare.

Try the dictionary

To determine the countries of origin for the words "caravan," "yoghurt," "sofa," "dessert," and "shampoo," you can follow these steps:

1. Etymology: Start by looking up the etymology of each word. Etymology is the study of the origin of words, including their historical development and changes in form and meaning over time. Etymology dictionaries or websites can provide helpful information.

2. Research: Once you have the etymology, research the history and cultural context associated with each word. This can help you identify the countries where these words originated.

Here is a breakdown of the origins of the given words:

1. Caravan: The word "caravan" refers to a group of travelers or a convoy of vehicles, often associated with long-distance journeys. It originally comes from the Persian word "kārvān," which means a group of travelers. The term was later adopted by Arabic and other languages. Consequently, the concept of caravans and the word itself are associated with countries in the Middle East and Central Asia.

2. Yoghurt: Yoghurt is a dairy product made by fermenting milk with bacteria. The word "yoghurt" has diverse origins, but it is primarily associated with the Middle East and Central Asia. The term derives from Turkish ("yoğurt") or other Turkic languages, which influenced its adoption in various cultures across the region.

3. Sofa: A sofa is a long, padded seat with a back and armrests, typically designed for multiple people. The word "sofa" originated from the Arabic term "ṣuffa," which referred to a raised platform or bench. It was then adopted by different cultures, including those in Europe, where the concept of a sofa evolved. So, the word has its roots in the Middle East, particularly in Arabic-speaking regions.

4. Dessert: Dessert is a sweet course consumed after the main meal. The word "dessert" can be traced back to French ("desservir") or Italian ("desservire") origins, which meant "to clear the table." Over time, it expanded to include the concept of a sweet treat served after a meal. Therefore, the word has European origins, primarily in France and Italy.

5. Shampoo: Shampoo refers to a hair cleansing and care product. The word "shampoo" comes from the Hindi-Urdu term "chāmpo," which means "to massage." This term was used to refer to hair washing techniques involving massaging the scalp. The concept of shampooing hair then spread to Western cultures, and the word "shampoo" gained broader usage.

By following these steps to research the etymology and history of each word, you can determine the countries associated with their origins.