CBSE ADDA

Class IX  Science Ch-07 Diversity in Living Organisms  Previous year Solved Questions ✍ How to memorize classification levels? King ➤ Phil-nnaeus ➤ Classed ➤ Ordinary ➤    Families as  ➤ Generous and ➤ Special Kingdom ➤ Phylum ➤ Class ➤ Order ➤    Family ➤ Genus ➤ Species 1 Which group of plant is called cryptogamy? Give two example               1 Ans Plants group with hidden reproductive organs are called cryptogamy eg. algae, lichens,  mosses, etc. The thallophytes, the bryophytes and the pteridophytes(any one) 2 What are the modification produced by  Car Woese, in the classification proposed by Whittaker       1 Ans The modification Woese divide the kingdom Monera into Archaebacteria (or Archaea) and Eubacteria (or Bacteria) 3 Name one mammal that lay eggs       1 Ans The platypus and the echidna

Get the CBSE Class 9th Science chapter, Improvement in Food Resources Important Questions & Preparation Tips SA-1 for 2015. This will provide you the idea that what type of Questions will be framed in Exam and from what topics. The pattern in which the Question Paper is set is quite different from the manner in which the course structure is defined actually. Consider the mentioned terms/questions at the time of studying. Verghese Kurien , the father of White Revolution in India and the founder of Amul, died after a brief spell of illness early on Sunday at Nadiad in Gujarat 1. State one demerit with composite fish culture system. [2010 (T-I)] Ans: fish breed only during monsoon and lack of availability of good quality seeds 2. State one importance of photoperiod in agriculture. [2010 (T-I)] Ans: photoperiod in agriculture provide adequate light for flowering 3. Name one micronutrient and one macronutrient which plants take from the soil. [2010 (T-I)] Ans: Ma

Chapter : IMPROVEMENT IN FOOD RESOURCES BIOLOGY-STUDY NOTES CLASS 9 INTRODUCTION There is a need to introduce production efficiency of crops and livestock because 1. rapid increase in population 2. No major scope of increasing area of land under cultivation. Increase in food production without degrading our environment   and disturbing the ecological balance i.e. Sustainable Practices are required in agriculture and animal   husbandry. TYPES OF CROPS Cereals: wheat, rice, maize, millets and sorghum. Provide carbohydrates for energy requirements. Pulses: pea, gram, black gram, green gram, pigeon pea and lentil. Provide proteins Oilseeds: soya bean, ground nut, sesame, castor, mustard, linseed and sun flower. Provide necessary  fats. Vegetables, spices and fruits provide vitamins and minerals.  Different crop require different climatic conditions, temperature and photoperiods for their growth  and completion of life cycle. Crops which grown in