CTET Solved Paper - RTET Feburary 2011 Paper2
126. The system affected by AIDS disease is
- Option : D
- Explanation : Immune system help human beings to fight against disease. HIV weakens the immune system making it prove to various infections.
127. "To every action, there is always an opposite and equal reaction." The statement is known as
- Option : C
- Explanation : Newton's third law of motion states that to every action there is always an equal and opposite reaction.
129. Which method of heat transmission does not require any medium?
- Option : A
- Explanation : Radiation is a process in which electromagnetic waves travel through a vaccum.
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