CBSC 10th Science Question Paper 2013 Free Download

CBSC 10th Science Question Paper 2013 Free Download

CBSC Class 10th Science Question Paper 2013, CBSC Delhi Class 10th (X) 2013 Science Question Paper CBSC Class X Science Question Paper 2013 outside Delhi Students Free Download CBSC 10th  – X Science Question Paper for Foreign Students with Answers and Solution 2013 CBSC Board Exam Papers for Class 12 (X) std CBSC 2013 Science Question Bank with Full Details.

                                                                                   Science

                                                                       Time allowed : 3 hours 

                                                                        Maximum Marks : 90

1. Identify and write the male reproductive parts from the list of different parts of a flower given below:
stigma, sepal, anther, petal, ovule, filament

2. Name the group of compounds which is mainly responsible for the depletion of ozone layer.

3. Write a difference between inherited traits and acquired traits giving one example of each.

4. What does a trophic level represent in a food chain? State the position of autotrophs and herbivores in a food chain.

5. What are esters? How are they formed? Illustrate with the help of a chemical equation. List two uses of esters.

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