The Rainy Season!

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 ?

Wxplain why : (i) Common salt becomes stick during the rainy season (ii) Blue vitriol changes ot wihte upon heating (iii) If bottle full of concentrated sulphuric acid is left open in the atmosphere by accident. The acid starts flowing out of the bottle of its own.

The following bar graph shows the number of deaths from road accidents occurred during the rainy season in the year 1992. Study the graph carefully and answer the question. Between which two consecutive weeks was the rise in the number of deaths the greatest?

The following bar graph shows the number of deaths from road accidents occurred during the rainy season in the year 1992. Study the graph carefully and answer the question. Between which two consecutive weeks was the fall in the number of deaths the greatest?