Class 9, Chapter-14, NCERT Science
CBSE Guide - CBSE Sample Questions with Solutions
Question.1: What is ‘Water Cycle’ ? Explain the process of water cycle.
Question.2: Write a short note on ‘Nitrogen Fixation’.
Question.3: Explain the ‘Nitrogen Cycle’. or, Write a short note on ‘Nitrogen Cycle’.
Question.4: Discuss the consequences of the increase in the concentration of Carbon Dioxide and other Green House gases in the atmosphere.
Question.5: What are the causes of Soil Erosion ?
Further study must, on this chapter