I'm doing a crossword to control means to what?

What’s the reason for not digging up aztec ruins in modern mexico city

According to the aztec history, how did the aztecs know where to build their new city of tenochtitlan? why was this a good location?

Which of the following policies is an example of a command-and-control policy? a. subsidies to education b. maximum levels of pollution that factories may emit c. tradable pollution permits d. none of the above is an example of a command-and-control policy.