The index of forbidden books was a part of the catholic church’s efforts to start a a. protestant reformation b. counter-reformation c. renaissance d. council at trent

d. Council at Trent

Explanation:

The Index of Forbidden Books (Latin librorum prohibitorum), a list of banned books proclaimed by the Council of Trent in 1546. Contains books and authors considered harmful to Catholic doctrine. Therefore, Catholics were prohibited from reading, printing and disseminating them. The index included non-canonical bible books (apocrypha), heretical books created before the Council of Trent, and modern authors.

these conditions long with a short growing season made farming difficult.

explanation:

the north has a climate of warm summers and snowy cold winters. the terrain is rocky, hilly, and not good for farming.

explanation:

the addition to geographic boundaries that might have  kept the people of the huang river civilization from traveling to far distance region is that they had learned about the other river valley civilizations but feared contact would bring invasion.

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