Answer: Secondary sources are important to study history because these sources provide information written by other authors. Direct information or testimonies from the people who were part of the historical events are called primary resources.
Explanation:
Answer:
HIV is a virus that attack the cell which helps to fight against infection and make person suffer from others infections and diseases.
Aquired immunodeficiency syndrome is the Aids caused by HIV virus that is chronic.
If the natural quality of water is destroyed by mixing unwanted and harmful substances in water, it is called water pollution.
Answer: #1 b #2 d
Explanation:thx or extra points
Legal Amendment because it is the only thing that can fit in the sentence
