Question
The ______ fight against germs that may enter our body.
Solution
Our immune system sends out white blood cells, antibodies, and other chemicals to rid the body of the invading germs.
Noise is measured in –
What is the primary cause of tides on Earth?
The atom of an element contains 2 electrons in its M-shell. The element is:
Which planet is the largest in the solar system?
The SI unit of surface tension is:
NaOH + HC1 -> NaCl + Hâ‚‚ O in the given chemical reactionÂ
Who explained the structure of protein?
The position, relative size and nature of the image formed by a concave lens for an object placed at infinity are respectivelyÂ
Which of the following statements is not correct about the dual nature of matter?
A liquid initially contracts when cooled down to 4°C but on further cooling down to 0°C, it expands. The liquid isÂ
