Mention the role of any five macronutrients in plants.

Explain the use of microbes in production of any five industrial products.

How will you describe the position of a table lamp on your study table to another person.

Which of the following are primaryt and secondary data ? (i) Collection of the data about enrollment of students in your school for a period from 2001 to 2010. (ii) Height of students in your class recorded by physical education teacher.

Which of the following are primary and secondary data? i. Collection of the data about enrollment of students in your school for a period from 2001 to 2010. ii. Height of students in your class recorded by physical education teacher.

Are the positions of (5,-8) and (-8,-5) is same? Justify your answer.

In the given figure, name (i) any six points (ii) any five line segments (iii) any four rays (iv) any four lines (v) any four collinear points

List out any five salient features of phylum echinodermata.

Which of the following are sets ? Justify your answer. The collection of all boys in your class.

What is a centromere? How does the position of centromere form the basis of clasification of chromosomes. Support your answer with a diagram showing the position of centromere on different types of chromosomes.