Answer:
Essay
Explanation:
In this modern world, due to advance information technology various means of communication is used for different purposes. For sending documents from one place to another, people use communication medium such as e-mail. For giving message through their voice, people use communication medium such as voice chat. Video chat is also a communication medium used by the individual to chat with their friends and relatives through live video. These communication mediums make the world into a small village where people interact with each other which are present at a large distances.
Answer:
Explanation: an independent variable is something you purposely change. And the effects that happen when you change the independent variable is called the dependent variable.
A)Antibiotics can always be used to treat bacterial infections.