P-2 Introduction to Microbiology — Science STD 10 — Question

The joule, The erg, The calorie, The newton.

What do you understand by a physical change?
OR
Define physical change.

Which type of disaster is described in the following statements: The huge waves in Chennai engulfed many human lives in December 2004.

Name a device which helps to maintain potential difference across a conductor (say, a bulb).

Write the lens formula?

Describe how you will locate a current-carrying wire concealed in a wall.

What is the threat for Manas Sanctuary?

When you smell a favourite food your mouth begins to water (that is, you secrete saliva). Write down what the following are examples of:
The smell of the food.

Kreb's cycle is also known as citric acid cycle.