Q. State two economically important uses of : (a) Heterotrophic bacteria(b) Archaebacteria

Q. Why growth of nationalism in the colonies is linked to an anti – colonial movement?

Q. (i) Why does alluvial soil differ in texture?(ii) State two cash crops that grow well in alluvial soil.

Q. Short Answer Type Questions:Write a short note on the two groups of islands of India.

Q. What are the similarities between iron, copper and aluminum?

Q. Define qualification shares.

Q. Define matter.

Q. What were the new administrative arrangements during this period?

Q. Name the characteristics of matter that are demonstrated by diffusion.

Q. Name two human traits which show variation.