For which of these would you use a histogram to show the data : The height of competitors in an athletics meet.Give reasons for each

For which of these would you use a histogram to show the data : The number of cassettes produced by 5 companies.Give reasons for each

For which of these would you use a histogram to show the data : The number of letters for different areas in a postman’s bag. Give reasons for each

For which of these would you use a histogram to show the data : The number of passengers boarding trains from 7:00 a.m. to 7:00 p.m. at a station.Give reasons for each

Which of the following lenses would you prefer to use while reading small letters in a dicionary?

Which of the following lenses would you prefer to use while reading small letters in a diciionary?

You are given the following three lenses. Which two lenses will you use as an eye piece and as an objective to construct an astronomical telescope? Give reasons.

Which one of the plant growth regulators would you use if you are asked to:

Name two energy sources that you would consider to be renewable give reasons for your choice.