For ap world:

what were the key indian influences on islamic civilization after the conquest of sind?

Indian culture enriched the Islamic civilization. The key Indian influences after the conquest of Sind were the following ones:

1) Indian achievements and progress in science, medicine, astronomy, and arts, including music, were passed to the Arabs.

2) What are currently known as "Arabic numbers" have roots in the acceptance of Indian numerals.

3) Arabs adopted Indian customs and traditions while, at the same time, they spread Islam.

4) Islamic governments adopted some Indian political traditions.

the correct answer is in fact b. spring tides are the highest, while neap tides are the lowest.