When you keep food items like bread and fruits outside for a long time especially during the rainy season, you will observe a cottony growth on them.
(a) What is the growth called ?
(b) Hoe does the growth take place ?

Explanation

(a)When food items like bread and fruits are kept outside for a long time especially during rainy season, a cottony growth of bread mould (a fungus) is observed.
(b)The growth of fungus takes place by spores suspended in the air, which when coming in contact with moisture on bread germinates and grows to produce new cells.