CBSE solved ,unsolved test papers,Notes, Assignments and Guess Papers : First Term: Improvement in Food Resources. Plant and animal breeding and selection for quality improvement and management; use of fertilizers, manures; protection from pests and diseases; organic farming. SA-I (2013) TLPEK7V 1. Mention two climatic conditions essential for different crops for growth and completion of their life cycle. 1 Ans: Temperature and photoperiods. 2. “Green Revolution of 1960 is a boon by itself”. List three steps that may be initiated to increase crop production 3 Ans: The major groups of activities for improving crop yields can be classified as: (a) Crop variety improvement (b)Crop production improvement (c) Crop protection management. 3. In what ways internal parasites like worms and flukes and external parasites cause harm to the cattle’s. 3 Ans: External parasite – Skin diseases; worms – affect stomach and intestine; Flukes – damage liver 4. Explain the mean
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