Both of them are the most important cities in their countries. They are capitals and cultural, demographic and industrial centres.
Answer: 3.6 seconds
Explanation: Geologic time is a way of measuring time based on events in the history of the Earth. If we compress this into one year, a single geologic year equals 4.6 billion years because the planet was formed 4.6 billion years ago.
Columbus arrived in the New World in August 1492, 528 years ago.
If 4.6 billion years = 1 year in geologic time,
528 years = 528 X 
=3.6 seconds
<em>(I broke the year down into seconds by breaking it down into days, then hours, minutes and seconds because the value is very small)</em>
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<em>So, if we compress geologic time into a single year, only 3.6 seconds have elapsed since Columbus arrived in the New World</em>
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<u>Answer:</u>
Food production system involves aspects of food such as principles of food processing and strategies to improve food and nutritional value for public, while <u>food system</u> is its application for the selection, preservation, processing, packaging, and distribution of safe foods.
<u>Explanation:</u>
- Food production system involves feeding population growth, packing, consumption, marketing, disposal, harvesting and food related items.
- It is also based on input need and output generated. All around the world countries are achieving sustainable development goals.
- Many countries plays key role in food system. They also achieve social economic goals by food system.