The Chinese kept silk production a secret because it was very important to their culture and economy for thousands of years.
The answer is A. growing quickly and becoming more advanced.
<h2>Hellooo! Marie Here!!</h2><h2 />
- Civic responsibility is like something that you do as a citizen. This can include volunteering, or help other citizens.
- Civic duty is something that each person should give their state/Country, like in the democratic process kind of like voting.
<h3 /><h3>Hope This Helps! Have A GREATT Day!</h3>