Choose the odd one out of the following terms given and name the category to which the others belong: Pesticides, Old computers, Tissue paper, Electronic toys
A person who has been taken Maths or Computer can apply for M.Sc computer science
A new computer can perform x calculations in y seconds and an older computer can perform r calculations in s minutes. If these two computers work simultaneously, how many calculations can be performed in t minutes ?
A sample of soil is mixed with water and allowed to settle .The clear supernatant solution turns the pH paper yellowish - orange . Which of the following would change the colour of this pH paper to greenish- blue?
A child wanted to separate the mixture of dyes constituting a sample of ink. He marked a line by the ink on the filter paper and placed the filter paper in a glass containing water as shown in figure. The filter paper was removed when the water moved near the top of the filter paper. (a) What would you expect to see, if the ink contains three different coloured components? (b) Name the technique used by the child. (c) Suggest one more application of this technique.
If BOD of sample water is very high, the sample is
