I believe the answer is option A
The Spanish had a positive effect on Aztec civilization because they helped modernize the society. They introduced the Aztecs to domestic animals, sugar , European farming practices.
Answer:
A is the answer for your problem
Answer:
Clean-up is proceeding very slowly and thousands of hectares of cropland is still off-limits to farmers. Government officials have stated that some land may need to be quarantined for 30 years or longer.
