List any three symmetrical objects from your day-do-day life.

List any four symmetrical objects from your home or school.

List any three manures.

Give some examples of data that you can collect from your day to day life.

A train time table must be compiled for various days of the week, so that two trains twice a day depart for three days, one train daily for two days, and three trains once a day for two days. How many different time tables can be compiled? a. 140 b. 210 c. 133 d. 72

Name three metals that you come across in your dialy life and also give their uses.

List any three human activities which would lead to an increase in CO_2 in air.

List any three important characteristics of population and explain them.