English Medium इयत्ता ९ - CBSE Question Bank Solutions

Give three functions of blood.

The rockets work on the principle of conservation of :

Distinguish between the following pair in one or two sentences for RBCs and WBCs.

Classify connective tissue and give one example of each type.

Describe the composition of blood.

Write short note on Pulse Polio Programme.

Define diarrhoea.

How does dehydration set in during diarrhoea?

"We can treat an infectious disease by killing microbe". Justify the statement with suitable examples.

Write short note on principle of treatment.

Name the scientists who described the arrangement of electrons in an atom.

Which ancient Indian philosopher suggested that all matter is composed of very small particles ? What
name was given by him to these particles ?

‘If 100 grams of pure water taken from different sources is decomposed by passing electricity, 11 grams of hydrogen and 89 grams of oxygen are always obtained’. Which chemical law is illustrated by this statement?

Name the central part of an atom where protons and neutrons are held together.

What are the various letters used by Bohr to represent electron shells in an atom?

Fill in the blanks with suitable words.
 A sound wave consists of places of higher pressure called ................. and places of................pressure called.................