Why do some children fall ill more frequently than others living in the same locality?

Solution: Let the length of the shorter side be x metres. Thus the length of the longer side=(x+30) m Length of the diagonal=(x+60)m Each angle of a rectangle=90 degrees By Pythagoras Theorem, (diagonal)2=(shorter side)2+(longer side)2 (x+60)2 ...

Since leaves require light to perform photosynthesis, the colour of a leaf kept in the dark changes from a darker to a lighter shade of green. Sometimes, it also turns...

Hint— Due to poor immune system, some children fall ill frequently. Balanced diet and proper nutrition for healthy body is required to have a strong immune system.

Following are the duties as consumers if we visit a shopping complex : Alertness : it is the duty for us to be more alert and we should question about the...

In the first transition series, Cu exhibits +1 oxidation state very frequently. It is because Cu ( +1) has an electronic configuration of [Ar] 3d10. The completely filled d-orbital makes...

Main topics covered in this part of CBSE Class 9 Science, Why Do We Fall Ill: Chapter Notes, are: Health Disease and its Types Causes of disease Antibiotics Principle of Treatment Principles of Prevention Key notes for...

The sources of water in my locality are groundwater through handpump and the municipality supply. Sometimes, especially in summer season, water from these sources becomes scant. In my locality, water...

These are adaptations to dry conditions. As a result of these modifications the surface of lamina is reduced thereby reducing water loss by transpiration.

In our locality water is available from the following sources:  Through pipe line supply by municipal corporation department to the houses.  People also obtain water from hand pumps installed nearby.