Q. Name the process in yeast that converts sugars into alcohol.

Q. Name the organelle which controls osmotic pressure in a cell.

Q. Food must have a limited amount of salts. Explain.

Q. Give reason for the following : Why is the weight of an object on the moon one – sixth its weight on the earth ?

Q. Solid A is a very hard electrical insulator in solid as well as in molten state and melts at extremely high temperature. What type of solid is it?

Q. Short Answer Type Questions: Define operating surplus. State its components.

Q. Name the regions where laterite soil is found.

Q. Fill in the blank with appropriate word to complete the sentence. The bark of the birch tree was used to prepare ___________.

Q. What is the main function of roughage?

Q. Find out the longitudinal and latitudinal extent of your state.