ПОМОГИТЕ ПОЖАЛУЙСТА ОЧЕНЬ НАДО

1 What is pH level of acids?
2 How are proteins built?
3 Why must essential amino acids be present in the food?
4 How many essential amino acids are there for adults?
5 Whom is histidine essential for ?
6 How many fatty acids are there in nature?
7.What are the most important saturated fatty acids?
8 Where are palmatic and stearic acids found?
9 When are liquid oils hardened?
10 Where are unsaturated fatty acids found?